Tamiya DT-03 Rear Lower Suspension Arm by JAZRIDER JR-DT301-LB  [JR-DT301-LB]

Rear lower suspension arm for DT-03

This aluminum rear lower suspension arm is produced for the Tamiya DT-03 chassis and carries the JAZRIDER model code JR-DT301-LB. It is a direct replacement-style hop-up part aimed at improving component stiffness and repeatability in scale RC rear suspension assemblies without changing core geometry.

Design notes concentrate on material and mounting role: the arm uses aluminum to resist deformation under load compared with standard plastic arms, and it interfaces with existing DT-03 mounting points and hardware. The arm is suitable where riders prioritize consistent camber response and long-term durability during track sessions or spirited backyard driving.

Installation overview remains straightforward for experienced builders: remove the stock rear lower arm, retain original mounting pins and hardware where compatible, and swap in the JAZRIDER unit. Check pivot clearances and secure retainers to the chassis manufacturer’s torque guidance, and verify suspension travel and alignment after fitment.

Use this arm when you need a durable, dimensionally stable rear lower link for DT-03 maintenance or incremental handling updates, and re-check your alignment after installation.