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

Graphite main shaft tailored for Tamiya models

This replacement graphite main shaft is supplied as one piece with alloy-ended fittings and is intended where the TT01 shaft design is specified; compatibility notes list TT02 and TT02B. The design pairs a stiff graphite centre with precision alloy ends to address both axial and torsional stiffness in the transmission.

Installation requires access to the gearbox or centre transmission for removal of the original shaft; the part fits directly when stock seating and retention methods match. During reassembly verify end engagement and check runout, then confirm spur and wheel mesh to avoid misalignment.

For builders the graphite midsection reduces flex compared with all-plastic shafts while the alloy ends keep a reliable connection to drives; this yields crisper rotational response without changing gearbox layout. Always confirm fitment and inspect mating components prior to extended running.