TRF421 45mm Rear Swing Shafts, RC spare parts

These 45 mm lightweight rear swing shafts are specified for the TRF421 chassis kit and supply 2 matching replacement parts for the rear drivetrain. The 90 degree offset between the drive pin and cross shaft positions is stated to limit vibration while driving, giving this small component a direct role in how the chassis transfers power under load. Each shaft is intended for the rear section, so the fitment stays focused on the exact area named in the data rather than a general drivetrain swap. The lightweight construction concentrates on a rotating part of the assembly, where mass and balance matter during running. With 2 pieces in the set, both sides of the rear end can be serviced with matching parts. The 45 mm length is the stated specification, which keeps replacement work aligned with the original chassis requirement. This spare part suits routine maintenance, repair after wear, or a planned rebuild of a TRF421 setup. During track preparation or workshop servicing, the pair can be fitted as the designated rear swing shafts to restore the intended drivetrain layout. The compact format also makes them a practical addition to a race box built around TRF421 running parts.

 

Warning! Not suitable for children under 14 years.