TAMIYA TT01/TT01E/TT01ED Aluminum Rear Hub/Knuckle Arm by JAZRIDER JR-TT102-BK  [JR-TT102-BK]

Rear hub and knuckle arm for TT01 series

This JAZRIDER JR-TT102-BK aluminum rear hub/knuckle arm is an aftermarket RC-scale replacement designed for TAMIYA TT01, TT01E and TT01ED chassis. It swaps in for the factory plastic hub carriers to give a firmer mounting point for the rear drives and steering linkages, helping reduce flex under braking and corner loads without changing the chassis geometry.

Compatibility is limited to the named TAMIYA TT01 variants, so confirm your chassis code before fitting. The part is machined from aluminum to improve wear resistance where stock plastic tends to deform over time, and it retains the same attachment layout so existing wheel hexes and driveshafts align as original.

Installation involves removing the original rear hub carriers, transferring any wheel bearings or set screws, and installing the aluminum unit to the rear hub assembly. After installation, verify driveshaft engagement and wheel runout, and check that steering linkage clearance is maintained across suspension travel. This part does not change suspension pick-up points but affects the stiffness and feedback of the rear end, which can influence toe and transient handling.

For maintenance, inspect mating surfaces and the condition of wheel bearings regularly, and replace worn bearings rather than forcing fitment. As a scale accessory part, it is intended solely for RC model use and not for any full-size vehicle applications.