The XRAY T4 has been our most successful touring car platform, one that the racing and R&D teams continue to improve year-after-year to bring you the finest and best-performing electric touring car in the world. XRAY’s dedicated passion for perfection never stops. At the core of every XRAY car is our passion for high-performance racing cars, dedication for absolute perfection, smart design approach and heritage of our extensive experience and achievements.


Following thousands hours of track-testing with the factory team around the world and thousands of hours in R&D and prototyping, the result is an outstanding race car that is a masterpiece manufactured and machined in-house in Europe, with the extreme precision you would expect from XRAY. I am very proud to present you the new T4.



High Performance.

Since the release of the first XRAY touring car in 1999, XRAY has been a driving force in the 1/10 electric touring car racing scene. Continuous development and evolution of the XRAY product line has led to ever-increasing performance.

High Performance High Performance

Winning Heritage.

With countless wins in multiple classes at the local, regional, national and international levels, XRAY has become the standard by which touring cars are measured.

Winning Heritage Winning Heritage


The craftsmanship, durability, and performance of XRAY kits have become legendary. Be part of the family, live the heritage.

Legend Legend
European Champions European Champions

European Champion


For XRAY to win the European Championship title feels fantastic for me on a personal level, as it’s the result of years of hard work. Team XRAY has come close many times to winning the Modified class at European Championship, achieving multiple TQs and podium finishes – even with myself being close to taking a win in previous years, too. Over the years we never gave up and continued our hard work, and it has paid off. I want to congratulate the entire team for this win that is a result of a dedicated teamwork. Together we have achieved great things! We will continue to work hard with our development of the T4 to stay ahead of the competition. The T4'16 is another step forward for this race-winning platform!

European Champion European Champion

European Champion


I am very proud and happy that I was able to take the back-to-back European Champion title for XRAY team, it is a great satisfaction for the work. Since I have joined the team several years ago we have continued to work very closely with the team and with Martin ensuring that every year we bring a better car that will be ahead of the competition. Being involved in the development and testing I know how much work and effort the team puts into testing and preparation for every single race and therefore any achievement and victory is a great satisfaction we are all very proud of. I am looking forward the 2016 season and can not wait to hit the track again.

European Champion European Champion

European Champion


I want to thank XRAY for their trust in me and making me a part of the Junior Team. Over the last few years I have improved my racing skills and results thanks to the work and knowledge gained from my teammates and the performance & reliability of the XRAY car. To be crowned as Junior European Champion is a wonderful achievement which makes my dedication to continue to improve even stronger. I will continue to work very hard to gain more experience and achieve ever better results.

European Champion European Champion

The ETS series has become the most competitive 1/10 electric touring car racing series in the world. It is not only the most highly-attended race, but also the most challenging as all teams from around the world put their maximum attention and focus on this series making the competition level extremely high like at a World Championship. A total of 6 ETS races are run during the season.


XRAY has been one of the most successful teams in that it dominates the ETS with the highest share of cars in the field, and also with the number of victories in the hotly-- contested Stock class. Team XRAY has won the overall ETS championship for the last 4 years in the row: 2012, 2013, 2014 and 2015.

European Champion European Champion

Racing Team.

Team XRAY continues its winning streak at major international & national races all around the world! Just recently, Team XRAY added plenty of titles including European Champion, ETS Champion, USA Champion and many more to the already impressive list of achievements, which includes more than 300 national titles from around the world, 45 titles from the USA National Championship, and multiple wins at other famous races such as DHI, TITC, LRP, IIC, ETS, Snowbirds, and many others. Be part of one of the most successful racing teams in the world!

Racing Team Racing Team

Development Team.

The T4 is the world’s most popular electric touring car thanks to ongoing development of the platform; year after year we bring you the best handling & performing touring car. The T4 is designed BY racers FOR racers. No matter if you race in Modified or Stock classes at local, regional, national or even World Championship level… the T4 takes you to the Winners Circle.

Development Team Development Team

T4 platform development is quite unique, as there is a wide range of skilled team drivers from all around the world having a direct influence on the development of the platform. All ideas collected from the team are analyzed, then are tested in prototype stage by the team under all track & racing conditions around the world to ensure that in the end only the best improvements are integrated into the new version of the car. Do you want to be part of the T4 development team? Grab your T4 and let us know what you think!


2016 All-New

  • All-new chassis design
  • All-new motor mount flex system
  • All-new top deck
  • All-new rear suspension holder for ARS
  • All-new front ECS drive shafts
  • Improved traction
  • Improved steering characteristics
2016 All-New 2016 All-New


The T4’16 features a new chassis that was redesigned to fit the new motor mount plate to allow for more chassis flex adjustment.

The ultra-narrow chassis is only 86mm wide and with the variety of chassis flex adjustment generates the required traction and gives excellent steering characteristics. The chassis design helps the T4’16 to be suitable for all track conditions.

The 2.2mm chassis is CNC-machined from premium-grade graphite material. The chassis features pre-drilled holes for optional parts such as chassis weights, graphite motor guard, graphite adjustable battery holder, and battery strap.

Weight distribution and balance characteristics have been optimized. Due to the increase in LiPo capacity – resulting in additional weight and heavier electronics to handle the increased power of modern brushless systems – the chassis was designed to allow the weight to be moved as close as possible to the chassis centerline in order to maintain proper balance.

Chassis Chassis

Motor Mount Plate.

The new motor mount plate features new extra additional chassis flex adjustment positions.

The motor mount is part of the left layshaft bulkhead to eliminate unwanted tweak. The motor mount is connected to the chassis by 2 screws under the layshaft, and features the mounting system in front of the motor. The motor mount system consists of a motor mount plate that is connected to the motor mount by a button-head screw which is more tweak-free compared to a countersunk screw. The motor mount plate is connected to the chassis via an M3 nut and an extra countersunk screw can be placed ahead of the nut if more reinforcement is needed, or the nut can be removed and 1 of 2 new holes can be used as extra flex adjustment options.

The layshaft part of the motor mount bulkhead allows the removal of front or rear (or both) screws which connect the top deck, as the bearing is fixed to the layshaft bulkhead and does not move. This improves the flex adjustability of the car to better suit different track conditions.

The motor mount is CNC-machined from premium Swiss 7075 T6 aluminum and is color-coated for a distinctive look.

Motor Mount Plate Motor Mount Plate

Top Deck.

The top deck shape was redesigned to allow for more easy access to the pinion gear, thus making it easier to work on the car.

The shape of the rear portion of the top deck has been specifically designed to achieve maximum traction and in-corner steering. The top deck is machined from premium-grade 2.0mm graphite. An optional belt tensioner can be mounted to the top deck.

Top Deck Top Deck

Suspension Holders.

All-new rear 1-piece suspension holder for ARS™ system ensures strength in crashes, as well as adding extra roll center positions for the ARS™ suspension.

CNC-machined from premium Swiss 7075 T6 aluminum and anodized in a distinctive orange color. XRAY’s legendary attention to detail is noticeable in all the precisely chamfered edges.

Suspension Holders Suspension Holders

ECS Drive Shafts.

The all-new Extra-Strong ECS drive shafts are included in the kit as a standard part. The legendary XRAY ECS drive shafts are equalize the speed between the drive shaft and the wheel. With a unique 2-piece joint between the axle and the wheel, the same extreme wheel turning angle is divided into two shallower angles without joint binding. This means that regardless of cornering speed and wheel angle, the inner wheel will not bind or vibrate. Drive through the corner is more stable, more precise, and easier to drive.

With the ECS drive shafts, wheel vibrations and noise are decreased to minimum, steering is increased, and cornering speed & smoothness are noticeably increased.

Drive shafts are exclusively manufactured from special world-renowned, top-secret, self-developed HUDY Spring Steel™. The drive shafts are strategically lightened – see the hollow end of the dog bone – to guarantee the lowest possible weight without compromising strength or durability. These specially-lightened drive shafts can only be manufactured from special HUDY Spring Steel™ which was developed for extreme racing conditions. The drive shafts have been additionally hand-ground for maximum precision and to provide true rotation and unbinding drivetrain operation.

ECS Drive Shafts ECS Drive Shafts ECS Drive Shafts ECS Drive Shafts

Aluminum Bulkheads.

The T4 platform – with centralized weight placement – features the smallest and lightest bulkheads ever, positioned more towards the chassis centerline to provide maximum traction & steering, and improved balance.

To accommodate the ball-bearing anti-roll bar mounting system, the bulkheads feature a special anti-roll bar mounting area where the anti-roll bar mounting collars are installed.

All bulkhead parts are CNC-machined from premium Swiss 7075 T6 aluminum and have been designed to provide the lightest and strongest possible support framework for the car.

The bulkheads are anodized in a distinctive orange color. (Note: Color may vary slightly between products.) XRAY’s legendary attention to detail is noticeable in all the precisely chamfered edges.

Aluminum Bulkheads Aluminum Bulkheads

Upper Clamps.

The aluminum upper clamps allow for very quick & easy roll center adjustment with 4 different roll center mounting positions. All upper clamps are identical and can be used both front & rear.

Made from premium Swiss 7075 T6 aluminum, orange anodized.

Upper Clamps Upper Clamps

Layshaft Bulkhead.

The layshaft bulkhead allows the removal of front or rear (or both) screws which connect the top deck, as the bearing is fixed to the layshaft bulkhead and does not move. This improves the flex adjustability of the car to better suit it to different track conditions and surfaces.

Made from premium Swiss 7075 T6 aluminum, orange anodized.

Layshaft Bulkhead Layshaft Bulkhead

Anti-roll Bar System.

The wobble-free anti-roll bar system is mounted to the front & rear bulkheads via bearings from outside for extra-smooth movement and quick & easy changes and adjustment. The roll bar turns in ball-bearings for maximum precision and free movement. Anti-roll bar height is adjustable via a screw.

Anti-roll Bar System Anti-roll Bar System

Anti-Roll Bars.

The complete range of different anti-roll bar thicknesses is designed to work with the ball-bearing roll bar mounting system. Front 1.4mm and rear 1.3mm anti-roll bars are included as standard in the kit. Anti-roll bars have laser-engraved stripes (corresponding to bar thickness) for easy identification.

Anti-Roll Bars Anti-Roll Bars

Proven Suspension Geometry.

From the narrow arms, through the tiny front and rear suspension blocks, to the small and robust steering blocks, every suspension part has been specially designed to provide responsive racing characteristics in all racing conditions. Over the years XRAY has successfully gained and utilized extensive suspension geometry knowledge and self-developed suspension stiffness technology, which have been utilized when designing suspension parts. The ultra-lightweight suspension parts are molded from a special composite material that makes the parts very light yet very durable to withstand the rigors of high-performance racing.

The T4 platform features optimized suspension parts carried over from the T3 platform. The arms feature a single optimized shock mounting position and integrated anti-roll bar mounts. The rear arms feature three anti-roll bar mounts for super-fine adjustment of the anti-roll bar.

Proven Suspension Geometry Proven Suspension Geometry

ARS™ System.

The kit includes both standard and Active Rear Suspension (ARS™) rear suspension. ARS™ offers great adjustment possibilities and driving characteristics.

ARS™ suspension consists of: suspension arms, graphite 0° C-hubs for optimal flex characteristics, hard steering blocks, and ARS™ linkages which connect suspension holders with the suspension block. The angle of ARS™ linkages –set by adding/removing shims on the suspension block and suspension holder – changes the toe-in characteristics of the rear tires during chassis roll.

ARS™ System ARS™ System ARS™ System ARS™ System ARS™ System

Suspension Holders.

Aluminum suspension holders feature Integrated Suspension Settings (ISS) which allow super-fast & easy suspension geometry setting. This XRAY concept was first introduced in the very first XB8 and has successfully been carried over to 1/10 onroad.

Suspension holders allow more durable mounting of the suspension arms. With the suspension holders, the geometry of the car does not change even under hard crashes. Thanks to the mounting system, arms move very freely to give higher traction and the car feels smoother in corners which also positively influences steering characteristics.

Suspension holders are CNC-machined from premium Swiss 7075 T6 aluminum and have been designed to provide the lightest and strongest possible support framework for the car.

There are two types of the suspension holders, each specifically designed and chosen to provide the required characteristics – stability, traction, and flex:

  • Front of the FRONT suspension – 1-piece
  • Rear of the FRONT suspension – 1-piece for stability, easy to drive in all conditions but especially under high-traction conditions. Optional 2-piece holders give increased in-corner steering, and are recommended for use on asphalt and low-traction track conditions.
  • Front of the REAR suspension – 2-piece for maximum rear traction. Optional 1-piece provides increased rotation of the car in high-traction track conditions.
  • Rear of the REAR suspension – 1-piece for more steering and better rotation. Recommended for high-grip conditions only, as it decreases rear traction. When using ARS™ suspension, the alu rear lower 1-piece suspension holder must be used with #302201 alu brace post for ARS™.

The suspension holders are color-coated in a distinctive orange color. XRAY’s legendary attention to detail is noticeable in all the precisely chamfered edges.

Suspension Holders Suspension Holders Suspension Holders

I.S.S.TM Suspension Bushings.

Using eccentric suspension bushings inserted into aluminum suspension blocks, as well as additional use of suspension shims and suspension parts, the T4 suspension geometry is completely adjustable including:

I.S.S.TM Suspension Bushings I.S.S.TM Suspension Bushings
I.S.S.TM Suspension Bushings

A complete set of various eccentric bushings is included for complete suspension geometry adjustment.

Suspension Arms.

Suspension arms feature the innovative SFATM (Suspension Flex Adjustment). Whether you are racing in low or high-traction track conditions, you can easily adjust the flex of the arms as appropriate by quickly adding optional graphite stiffeners which will change the stiffness of the suspension. The arms include 4 holes where the graphite stiffeners are mounted and the areas around the holes are strengthened for maximum durability.

Suspension Arms Suspension Arms

Graphite Stiffeners.

Innovative and unique SFATM graphite stiffeners allow for super-quick suspension flex adjustment to easily adjust the traction of the car in various track conditions.

Whether you drive in low- or high-traction conditions, with the smart graphite stiffeners you can very quickly adjust your car to suit it to current conditions. At the beginning of a race event when traction is low, the arms are used without the SFATM graphite stiffeners. When the traction increases, the suspension can easily be made stiffer by mounting the SFATM graphite stiffeners for more stability and easier driving characteristics. The graphite stiffeners give the car maximum stability in chicanes and allow for easier and smoother steering.

Made from 1.6mm thick high-quality CNC-machined graphite material, the stiffeners can be easily mounted or removed by only a few screws whenever needed.

The stiffeners are available only as an optional part.

Graphite Stiffeners Graphite Stiffeners


The C-hubs in the T4 are also carried over from the T3 platform and feature large openings for quicker & easier assembly/disassembly of the CVDs/ECS. The entire CVD/ECS assembly can be easily inserted/removed through the C-hub without the need for disassembly. The large openings prevent collision of CVD/ECS with C-hub in serious crashes.

The C-hubs are available in all standard caster angles (2°, 4°, 6°) and are also available in 3 different hardnesses that are optimized for particular racing conditions.

C-hubs C-hubs

Steering Blocks.

The small and tough steering blocks each feature two Ackermann positions. The front steering blocks also feature small but robust 5x10x4mm ball-bearings to minimize unsprung weight.

The steering blocks are available in two different hardnesses, which are optimized for particular racing conditions.

Steering Blocks Steering Blocks

Rear Uprights.

Hard "H" rear uprights are included to improve the stability of the car and to increase cornering speed of the T4.

The rear uprights feature 0° toe to ensure stability and prevent suspension geometry changes in hard crashes. There are two different roll center positions on the rear uprights, and roll center positions can be easily adjusted by adding shims between the upright and the turnbuckle ball joint.

The rear uprights feature small but robust 5x10x4mm ball-bearings to minimize unsprung weight.

The rear uprights are available in two different material formulations that were specifically blended for particular racing conditions. A medium “M” hardness rear upright is available as an option.

1-hole uprights were developed as an optional fine-tuning part to compliment the standard 2-hole uprights for high-traction tracks where more roll of the car is desired. These 1-hole uprights provide an additional option versus the standard 2-hole upright when the outer hole does not allow enough roll, and the inner hole creates too much roll.

Rear Uprights Rear Uprights

Central Servo Mount.

Central servo mount is mounted to chassis by 3 screws for better durability, and to help eliminate servo movement in hard crashes.

The servo mount includes an extra hole where the battery backstop screw can be mounted, also allowing adjustment for battery width.

XRAY’s self-developed central servo mount is now standard in the T4. This XRAY-style mount allows the servo to be mounted to the chassis without the servo coming into contact with the chassis plate. This design has been engineered to eliminate tweak and increase overall traction.

The Swiss 7075 T6 main aluminum stand is positioned along the chassis centerline for perfectly-balanced flex characteristics, and it holds the high-grade graphite servo plate suspended above the chassis.

Central Servo Mount Central Servo Mount

Dual-arm Steering System.

The dual-arm steering system is supported by 6 ball-bearings and runs on aluminum stands. Ackermann is easily adjusted by inserting shims between the steering plate and steering rods. The steering system features a lower mounting position for the steering linkage, which makes the car handle easier going into corners. More aggressive handling is easily adjusted by inserting shims between the steering blocks and steering rods.

The design of the front lower suspension holder allows easy access from the front of the car for quick & easy Ackermann adjustment.

Dual-arm Steering System Dual-arm Steering System Dual-arm Steering System Dual-arm Steering System Dual-arm Steering System Dual-arm Steering System

Steering Plate.

The steering plate provides increased steering into the corner and makes the car more stable and easier to drive in chicanes. To achieve the improved steering characteristics, the distance to the steering linkage mounting was changed to 8.5mm. Machined from premium Swiss 7075 T6 aluminum material, and orange anodized.

Steering Plate Steering Plate

Servo Saver.

The hugely-popular XRAY servo saver was improved and updated for the T4. Additional positions on the servo saver were added to make steering linkage adjustment easier. The servo saver consists of 4 springs which makes the servo saver strong enough to provide the precise steering racers demand, while still being flexible enough to prevent servo damage in hard crashes. The servo saver has interchangeable bushings to fit most popular servos.

Servo Saver Servo Saver

Adjustable Steering.

Smart chassis flex adjustment via optional graphite steering plate which can be mounted with an additional aluminum stand. Using only the graphite steering plate, chassis flex is medium; using the aluminum stand for reinforcement, the flex becomes stiffer. Stiffer flex results in more aggressive handling and increased steering.

Adjustable Steering Adjustable Steering

Adjustable Top Deck.

The top deck design allows installation of an optional aluminum stand which changes the car’s flex characteristics. By adding the reinforcement stand, the rear layshaft bulkhead screws are removed which generates more traction and makes the car easier to drive but results in more on-power push. Recommended for low- or high-traction conditions. For low- and medium-traction conditions, it is recommended to use the top deck without the aluminum stand.

Adjustable Top Deck Adjustable Top Deck


The ultra-efficient and well-proven drivetrain has been carried over from the T3 platform. The drive ratio is suitable for current high-performance brushless motors (stock or modified) and LiPo batteries. Both the front solid axle and the rear gear diff feature 38T pulleys and the central layshaft features 20T pulleys for an efficient internal ratio of 1.9.

Drivetrain Drivetrain

Rear Drive Shafts.

The T4 features 50mm long lightweight aluminum drive shafts machined from premium Swiss 7075 T6, hard-anodized and black-coated for stylish looks. The aluminum drive shafts are designed for use in the rear.

Rear Drive Shafts Rear Drive Shafts

Drive Axles.

To reduce rotating weight, the rear CVD drive shafts feature super-lightweight wheel axles which have the outer diameter specially ground to remove the material while keeping the same strength thanks to the use of HUDY Spring Steel™. The lightweight drive axles reduce rotating mass up to 35% compared to regular drive axles.

Drive Axles Drive Axles

Alu Hex Hubs.

Ultra-lightweight wheel hex drive hubs are CNC-machined from 7075 T6 black-coated aluminum. These ultra-true hex hubs are specially machined to reduce rotating weight while guaranteeing wobble-free wheel mounting. Optional offsets are available (-0.75, +0.75, +1.5mm).

Alu Hex Hubs Alu Hex Hubs

XRAY Gear Differential.

The T4 gear diff increases on-power steering which is needed on nearly all types of tracks, and is ideal for both carpet and asphalt tracks. The gear diff includes a composite case and cover with pulley. Differential gears are made from tough composite material, precision-molded composite gears combined with light aluminum drive shafts, which create a lighter and super-smooth gear differential. Another key advantage of the gear diff is that it is maintenance-free. When the diff is correctly built, there is no need for maintenance for a very long time… no need for frequent oil changes, and no leakage due to the superior sealing system.

XRAY Gear Differential XRAY Gear Differential

XRAY Solid Axle.

Rotating mass is one of the most significant influences on the performance of an RC racecar.

The T4 features a unique lightweight composite XRAY Front Solid Axle. The Front Solid Axle has a very stiff and ultra-light weight structure that was achieved by molding the entire solid axle from XRAY's own self-formulated composite material.

Outdrives are fully exchangeable which allows quick & easy servicing, while the unique drive shaft connection - eliminating the former drive shaft blades - enables direct power transfer to the axle and eliminates play between the drive shaft and outdrives, improving steering precision and increasing overall steering.

XRAY Solid Axle XRAY Solid Axle

Centrally-positioned Layshaft.

The spur and pinion gears have been aligned along the absolute centerline of the chassis to optimize the placement of the polar moment and ensure ideal balance of the drivetrain components.

Centrally-positioned Layshaft Centrally-positioned Layshaft

Alu Middle Layshaft.

The aluminum layshaft is strategically CNC-machined to minimize rotating weight without compromising strength or integrity. The hollow layshaft is perfectly round with zero run out, eliminating drivetrain vibration and producing a positive balance. Composite pulleys key solidly to the layshaft.

Alu Middle Layshaft Alu Middle Layshaft

Kevlar® Drive Belts.

The 2-belt 4WD drivetrain concept provides maximum efficiency and highest performance using Kevlar®-reinforced drive belts for ultra-high durability. Narrow (3mm) front and rear drive belts have been specially ground for minimal thickness and flexibility.

Kevlar® Drive Belts Kevlar® Drive Belts

Super Low Profile (SLP) Shocks.

T4 platform shock absorbers were completely re-designed and re-engineered. Everything is new and the shocks are aluminum.

SLP shocks were developed to lower the CG of the car to the absolute maximum in order to improve stability. With the new SLP shocks the T4 stays flatter, making it easier to drive in chicanes and more resistant to traction roll, letting you carry more speed through high traction sweepers.

Super Low Profile (SLP) Shocks Super Low Profile (SLP) Shocks

The shock bodies are CNC-machined from premium Swiss 7075 T6 aluminum and hardened to ensure maximum life. The shocks consist of a shortened shock body but with a larger diameter to retain the same volume of oil as the previous, longer T3 shocks.

Pistons were designed and produced to accommodate the Super Low Profile (SLP) shock absorbers. The piston set includes 3- and 4-hole pistons with 1.0, 1.1, and 1.2mm diameter holes. The pistons are molded using special methods and composites to ensure extreme roundness, while maintaining maximum stiffness and durability.

Super Low Profile (SLP) Shocks Super Low Profile (SLP) Shocks

SLP shocks were developed to lower the CG of the car to improve stability. With the new SLP shocks the T4 stays flatter, making it easier to drive in chicanes and more resistant to traction roll, letting you carry more speed through high-traction sweepers.

SLP shocks are nearly 8mm shorter than T3 shocks.

Both front are rear shock absorbers have front and lower ball joints purposefully larger to provide a little more play of the shocks once mounted to generate more traction.

Super Low Profile (SLP) Shocks Super Low Profile (SLP) Shocks

Shock Springs.

To make the car more stable and easier to drive under various track conditions, the 2.5C linear springs were chosen as the basic setting on both front and rear shocks. The 2.5C linear springs provide the best balance between steering, traction, stability, and response.

The 4S springs - like all other XRAY springs - are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.

Shock Springs Shock Springs

Shock Towers.

To maximize the effect of the SLP shocks, both front and rear shock towers were completely redesigned and lowered by 15mm to help move the CG as low as possible. Machined from premium-grade 3.0mm graphite, the shock towers are smaller, lighter, more compact and, after vigorous testing, have been race-tuned to increase on-power steering.

Shock Towers Shock Towers

Bearing Holders.

The adjustable bearing eccentric holders were also updated to mate with the new, narrower bulkheads. As with previous XRAY designs, both front and rear bulkheads feature integrated belt-tension adjustment through the use of adjustable bearing eccentric holders, eliminating the need for a separate belt tensioner while reducing friction and improving drivetrain efficiency.

Bearing Holders Bearing Holders

Integrated Belt Tension Adjustment.

As with previous XRAY cars, both front and rear bulkheads feature integrated belt-tension adjustment through the use of adjustable bearing eccentric holders, eliminating the need for a separate belt tensioner. These eccentric holders were modified to fit the new super narrow position of the bulkheads, while allowing you to still use your existing differentials and spools. All ball-bearings turn in composite hubs to reduce friction and improve drivetrain efficiency.

Integrated Belt Tension Adjustment Integrated Belt Tension Adjustment

Diff Height Adjustment.

Both front and rear bulkheads feature independent diff height adjustment. By rotating the diff eccentric holders, the height of the diff can be adjusted by 1mm. Optional eccentric holders with 2mm offset are available which allows diff height adjustment of 2mm.

Diff Height Adjustment Diff Height Adjustment

Premium Ball-Bearings.

A full set of 24 high-speed, blue-sealed and steel ball-bearings are used throughout the drivetrain, steering and anti-roll bars to ensure maximum efficiency. All of the bearings are degreased and oiled with Aero Shell® Fluid 12 for maximum smoothness and long life. The bearings used in steering blocks and uprights have been specially selected to reduce unsprung weight and maximize drivetrain efficiency.

Premium Ball-Bearings Premium Ball-Bearings

Aluminum Turnbuckles.

Aluminum adjustable turnbuckles used in the T4 are CNC-machined from 7075 T6 material with a stylish black coating. These turnbuckles are used for front and rear upright linkages as well as for the servo saver and ARS™ system. The aluminum turnbuckles are lighter than steel to help decrease the overall weight of the car.

Aluminum Turnbuckles Aluminum Turnbuckles


To improve body fit as well as to achieve lower CG, the T4 bumper has a super-low profile and is very lightweight. The bumper is manufactured from high-resilience lightweight foam. The lower composite bumper mount and upper bumper holder are molded from rigid composite material to withstand hard impacts.

Bumper Bumper

Bumper Upper Holder.

Composite bumper upper holder brace helps to reduce chassis breakage in serious crashes. The composite bumper upper holder brace is mounted on the top composite upper holder for the bumper. The brace matches the shape of the layshaft bulkhead so if a crash occurs, the brace touches the bulkhead and protects the front of the chassis from breakage.

Bumper Upper Holder Bumper Upper Holder

Body Posts.

Beefy 6mm thick body posts are made from special composite material that provides maximum strength but sufficient flex to reduce body post breakage in hard crashes or if the car flips over. The body supports are rounded to have a better fit and provide better support to the car body.

For ultimate tuning and adjustment, XRAY offers optional body height adjustable body posts which allow the independent front & rear body height adjustment by +1mm or +2mm.

Body Posts Body Posts

Battery Holders.

Smart battery holders are specifically designed for LiPo batteries and are reinforced for harder impacts. The battery holders prevent the batteries from moving under racing conditions and crashes.

Battery Holders Battery Holders

Adjustment Possibilities.

The extensive and impressive range of adjustment possibilities includes: ARS (Active Rear Suspension™), caster, camber, toe, anti-dive, anti-squat, ride height, downstops, track-width, lower roll center, upper roll center, roll center positions, steering roll center, wheelbase, Ackermann, optional belt-tension adjustment, adjustable shocks, adjustable rear diff and adjustable optional front XRAY Multi-Diff™.

XRAY Set-up Book.

The new T4 retains the title of the most adjustable electric touring car in the world. Whether you are a hardcore racing fanatic or a club-level sportsman, you can very easily adjust the T4 to suit your racing style, race track type, and all track conditions. The highly-acclaimed XRAY Set-up Book features more than 50 pages of high-quality pictures and easy-to-read and understand RC car set-up explanations. Whether you are a novice driver or an experienced racer, you can easily learn many set-up tips & tricks and improve your set-up skills, ultimately translating into improved racing performance with your T4. The XRAY Set-up Book is available for download exclusively at www.teamxray.com

 Adjustment Possibilities  Adjustment Possibilities

Chassis Balance.

Chassis design focuses on balanced weight distribution and weight transfer. The chassis features pre-drilled holes for additional weights for optimum car balancing. Centerline holes are pre-drilled for easy balancing with the HUDY Chassis Balancing Tool #107880.

Chassis Balance Chassis Balance

Graphite Grease.

The T4 includes premium HUDY Graphite Grease which is a high-performance, advanced-technology semi-fluid lubricant which incorporates both extreme pressure additives and finely-dispersed graphite for load carrying. It is intended primarily for the lubrication of rotating parts and loaded gears. In addition to providing outstanding load carrying, it is formulated to have excellent adhesion and resistance to "fling-off" under extreme conditions. The grease reduces wear and increase the parts life.

Graphite Grease Graphite Grease

XRAY Instruction Manual.

XRAY instruction manuals have become the industry standard, being simply the best manuals you will ever get with an RC model car. Whether you are a first-time builder or an experienced racer, all the instructions are straight-forward and easy to understand. The full-color Instruction Manual contains large 3D illustrations that show all assembly details in the clearest possible way.

XRAY Instruction Manual XRAY Instruction Manual

XRAY VIP Customer Treatment.

Owning an XRAY model racing car is an experience on its own. Not only will you own the most premium luxury model racing car in the world, but you will also become a member of the prestigious family of XRAY owners with direct support and service from the XRAY factory. XRAY brings you the most up-to-date RC Web site on the Internet, with daily racing news and latest product developments. If you have any questions, problems or comments, you can ask the XRAY Support Team or any XRAY Factory Team Driver on the XRAY Support Forum. You can even upload your own set-up sheets or download from the thousands of different set-up sheets available from all around the world at the exclusive XRAY Virtual Set-up Sheet Database, the world’s largest set-up sheet database. And that is only the start of the VIP treatment you get by joining Team XRAY.

XRAY VIP Customer Treatment XRAY VIP Customer Treatment