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| 2026 All-new Features |
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• 3 kit versions improve out of the box performance for a wider range of track conditions
• 30g of total weight savings without compromising durability, very beneficial in spec class racing that requires larger battery packs
• All-new new CFF2™ lower suspension arms with integrated composite detailing maximizes suspension rigidity and improves handling in all conditions
• New suspension geometry moves shocks further outboard to improve traction and steering response in all conditions
• Refined ultra-low and consistent anti-roll bar mounting system improves anti-roll bar function and ease of setup
• Smaller and lower profile suspension pivot balls save weight and provide greater roll center tunability
• All-new aluminum bulkheads compliment the new suspension parts. A universal design at all four corners uses an interchangeable bulkhead for left-right and front-rear, reducing spare parts count and • simplifying repairs
• Lower screw holes on the front and rear bulkheads feature countersinks that allow using standard hardware for any chassis variation, improving durability while reducing costs
• All-new CFF™ upper arms with reduced flex from its optimized shape contribute to the more consistent handling of the new suspension
• Link-style upper arms offer enhanced steering response with additional adjustability compared to the fixed molded arms, providing maximum adjustability out-of-the-box
• All-new carbon fiber upper clamps reduce overall weight, especially important due to their location, lowering CG while maintaining optimal chassis flex
• Multiple upper clamp mounting alternatives for different flex and handling characteristics
• Ultra- long link upper arms are made easier with the new upper clamp design, providing an additional alternative to the standard upper arm length.
• All-new narrow chassis accommodates the new suspension and bulkhead designs, including short and standard arms, as well as the new shock holder mounting positions.
• All-new front bulkhead brace controls flex and handling characteristics, and reduces the need for different front top deck types, reducing costs and simplifying set-up
• All-new ultra lightweight, narrower front spool is made from aluminum for low weight and a clean look
• All-new narrow, ultra-reliable and lightweight rear differential with pin system for outdrives
• All-new top decks optimize flex together with the new bulkheads, front brace and upper clamps
• All-new built-in suspension up-stops limit suspension travel independently from the shock absorbers for easy fine tuning of the car’s front and rear suspension travel
• Smaller diff & spool bearings and eccentric bearing holders reduce weight and lower CG
• All-new lightweight and ultra-durable rear carbon fiber body post holder
• All-new carbon fiber steering & ARS plates optimize geometry, flex and reduce un-sprung weight |
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| X4 Editions. |
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| The X4’26 is available in three different versions to suit any track. |
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| Weight Savings. |
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| 30g of total weight savings without compromising durability, especially beneficial in spec class racing when heavier battery packs are needed. |
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| Suspension Arms. |
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| All-new world's unique CFF2™ carbon fiber lower arms with moulded in composite detailing for maximum suspension rigidity and optimal suspension function. The arms are extremely light yet durable. |
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| Suspension Arms. |
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All-new CFF2™ carbon fiber lower arms with integrated composite detailing for maximum suspension rigidity and optimal suspension function. The arms are extremely light yet durable.
The all-new improved suspension geometry with shocks more outboard improves traction and steering response in all conditions. A unique design solution is applied for easy pivot ball assembly while maintaining maximum reliability. |
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| Shock Holders. |
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| Compatible with the included XLP2 shocks, new shock holders align with the updated suspension geometry and bulkhead shape. The new geometry improves cornering speed, mid-corner steering and stability. |
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| Anti-Roll Bars. |
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The ultra-low CG anti-roll bars are attached from above the suspension arms with minimal mounting hardware and materials. The wobble-free anti-roll bar height is easily adjusted via set screw from the top of the arm.
The new mounting geometry makes the anti-roll bars more efficient and achieves earlier pickup points from the suspension movement. |
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| Suspension Pivot Balls. |
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All-new smaller and lower profile suspension pivot balls reduce weight and offer more roll center tunability.
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| Bulkheads. |
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| All-new aluminum bulkheads compliment the new suspension parts. A universal design, using the same part for both left-right and front-rear interchangeability, reduces spare parts costs and simplifies repairs. |
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| Built-in Upstops. |
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| All-new built-in suspension upstops provide easy fine tuning of the car’s dynamics affected by front and rear suspension travel. |
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| Upper Arms. |
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| All-new CFF™ upper arms have redesigned shape for improved flex characteristics for more consistent handling. Link style upper arms are also included in each kit as a tuning option that can enhance steering response and provide additional adjustability out of the box. |
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| Upper Link Arms. |
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| Adjustable link upper suspension arms provide an alternative to the traditional CFF™ upper arms for maximum adjustability, and improved handling in certain conditions. The links further expand the adjustment possibilities of the X4. |
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| Upper Clamps. |
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| All-new carbon fiber upper clamps reduce overall weight, lower CG and improve control of chassis flex. The new upper clamps are lightweight to keep the car’s CG low. The heavy-duty design retains maximum durability in case of a crash. The design features minimal flex that produces consistent handling in all conditions. |
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| Upper Clamp Flex Options. |
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| All-new upper clamp design also offers multiple mounting alternatives that alter chassis flex and handling characteristics. The clamps feature 3 screws that are installed in different combinations for 4 different flex options. |
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| Steering & ARS plates. |
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| All-new carbon fiber steering & ARS plates for optimized flex and reduced unsprung weight of the suspension. The carbon plates increase mechanical grip thanks to the optimized flex and shape used. |
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| Gear Differential. |
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| All-new ultra lightweight, narrower rear gear differential to accommodate for new bulkheads. The new differential utilizes smaller 6x10x3 ball bearings, together with smaller eccentric bearing holders, for reduced weight and lower CG. The differential features a secure and reliable pin system for the outdrives. |
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| Solid Axle. |
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| All-new ultra lightweight, narrower front spool to accommodate for new bulkheads. The new spool utilizes smaller 6x10x3 ball bearings, together with smaller eccentric bearing holders, for reduced weight and lower CG. The new spool is made from aluminum, which allows for a very lightweight and clean design. |
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| Bearing Holders. |
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| Both front and rear bulkheads feature additional integrated belt-tension adjustment using adjustable bearing eccentric holders. All-new design for 2026 to accommodate for the smaller 6x10x3mm spool & diff bearings, for reduced weight and lower CG. |
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| Chassis. |
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| All-new narrow chassis design to accommodate for new suspension and bulkhead parts. Short and long arms, as well as new shock holder mounting positions. |
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| Top Deck. |
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| All-new top decks with optimized flex accommodate for new bulkheads and upper clamp parts. Only one front top deck type is needed because of the new front bulkhead brace which can be mounted on either the bulkhead or front top deck. |
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| Front Bulkhead Brace. |
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| All-new front bulkhead brace for different flex and handling characteristics, and which removes the need for different front top deck types for reduced costs and ease of set-up. |
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| Upper Bumper Brace. |
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| All-new shorter upper bumper brace design which accommodates for the new bulkhead shape for maximum reliability. |
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| Rear Body Mounting System. |
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Extra thick, yet lightweight and low-CG 4mm carbon rear body post holder features maximum durability and stability from the minimal body post flex.
The body post holder features 7 holes with 1.1mm spacing for the rear body posts for easy and precise mounting of horizontal rear body posts.
The body post position also accommodates the taller body post heights needed with common VTA bodies. |
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