This red main shaft is an RC replacement intended for the Tamiya TT-02 chassis, supplied under model TT02-13100-RD. It is provided as a single red-finished shaft designed for drivetrain repairs and routine maintenance swaps.
Installation notes: open or remove the gearbox to reach the TT-02 transmission, inspect the existing shaft and nearby ball bearings, then install the replacement while preserving the original orientation and clearances. Check that gears rotate smoothly, re-check alignment, and apply appropriate grease to bearings and mating surfaces before final assembly.
Role in maintenance: the shaft is suited for restoring correct drivetrain geometry after wear or damage and for keeping on-hand as a spare; it is not intended as a performance upgrade but as a service replacement for reliable maintenance.