Upgrade Rear Arm for RB7.5 and ZX7.5 - UBW009 Kyosho  [KY-UBW009]

Rear suspension arm in carbon composite for RB7.5/ZX7.5

This carbon composite rear suspension arm fits RB7.5 and ZX7.5 chassis and is offered as a direct replacement or hop-up component. It alters rear geometry and load distribution while leaving drivetrain parts unchanged.

The arm is manufactured from carbon composite material as noted in the name, providing increased stiffness where required and trimming weight relative to some polymer alternatives. It is intended for hobby use as a spare or performance-oriented replacement on RB7.5 and ZX7.5 style layouts.

Fitting notes: remove the wheel and separate the rear hub if needed, keep existing pins and screws if the seller does not include hardware, use the specified hex driver sizes and confirm bearings and hubs move freely after installation. Treat the part as a geometry change—reassess camber, toe and damper settings and adjust progressively to restore the desired handling balance.

Sold as a carbon composite rear arm for RB7.5 and ZX7.5 chassis, the part supports suspension maintenance and incremental tuning rather than being a plug-and-play upgrade kit.