Tamiya TT01/TT02 Aftermarket Graphite Main Shaft with Alloy Ends GTT2B025 by GPM  [GTT2B025]

Graphite main shaft for Tamiya transmissions

Supplied as a single graphite main shaft with alloy terminations, this unit is intended for installations using the TT01 shaft form and is specified as compatible with TT02 and TT02B. The design pairs a stiff graphite midsection with precision alloy ends to reduce axial and torsional movement in the drivetrain.

Installation replaces the factory shaft directly when seating and retention are compatible; accessing the shaft requires gearbox or central transmission disassembly. During refit check end engagement and runout, and then reconfirm spur and wheel mesh to preserve correct drivetrain geometry.

For tuning the graphite centre reduces flex versus plastic shafts while the alloy ends secure connections to mating parts, delivering a tighter drive feel without changing gearbox layout. Always confirm part compatibility and inspect mating components before extended operation.