TT01 Drivetrain Alloy Main Shaft TT025 performance part by GPM  [TT025]

Replacement alloy main shaft for TT01 chassis

This alloy main shaft serves as an RC replacement part for Tamiya TT01 chassis projects and maintenance. It acts as the direct-drive shaft in the drivetrain and is intended to reduce operational play compared to stock shafts.

Installation requires basic drivetrain teardown to remove the original main shaft and to check nearby bearings and gears for signs of wear. Verify spline alignment and bearing seating before the final torque sequence and apply correct thread locking per the TT01 manual; mounting geometry remains the same as the factory part.

From a tuning viewpoint, an alloy main shaft can influence drivetrain rigidity and the mechanical feedback to the motor and spur gear. Consider swapping when you observe flex or play in the stock shaft and confirm the effect with practical test runs under load.