Check the option parts that Junior World Champion and member of team XRAY, Daniel Kobbevik from Norway has been using at his XRAY XB2'21. Daniel explains also the benefit of each part, for which track conditions they should be used and what performance improvement you will experience
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Differential Bevel & Pin & Satellite Gears #335030 Bevel & Gears #335080 Pin
>>> The diff bevel with satellite gears and pin are as must have for me on high grip
Composite Suspension Lower Arms - Graphite #363112-G Rear Right #363122-G Rear Left #322113-G LSM Front Right #322123-G LSM Front Left
>>> The graphite arms are a must for me, and again it's about getting control over the shocks plus landing and takeoff where I feel more stable with those arms. Also the car is a little bit more precise, especially on high grip
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Composite Gear Differential Cover & Case - LCG - Graphite #324911-G Cover #324954-G Case with Pulley 53T
>>> The composite gear diff cover and case provide less weight and more stable temperature.
Alu Steering Arm & Plate Rearward Linkage Mounting #322512 Arm #322572 Plate
>>> With the arm and plate steering is more linear and consistent, improves overall feeling of the car
