Kyosho Mini-Z AWD Aluminum Main Shaft by 3Racing AWD-01  [AWD-01]

Aluminum main shaft for Kyosho Mini-Z AWD

This aluminum main shaft is an RC-scale drivetrain replacement intended for Kyosho Mini-Z AWD applications, supplied by 3Racing under model AWD-01. It serves as the rotating backbone between the motor output and the differential assembly on MR-03 AWD-style chassis, and is designed to be used with the vehicle's existing bearings and drivetrain components.

When fitting the shaft, confirm compatibility with Mini-Z MR-03 AWD chassis layouts and check bearing fit and runout before reassembly. Typical installation steps include removing the old shaft, inspecting and cleaning mating bearings and housings, applying a light PTFE-compatible lubricant where metal contacts bearings, and verifying free rotation without binding. Do not force components; if play or interference remains, inspect related spur and pinion alignments.

In tuning terms, an aluminum shaft increases torsional stiffness compared with many stock polymer shafts, which can reduce drivetrain flex under acceleration but may shift load to adjacent parts; monitor bearing wear and other transmission components after installation. Use this part as a straightforward maintenance or upgrade item for improving drivetrain feel on indoor track and club-level events.