TAMIYA F103RM Rear Axle Up & Down Offset Spacer by 3Racing F103RM-03  [F103RM-03]

Rear axle offset spacer overview

This 3Racing F103RM-03 spacer is an RC-scale rear axle accessory designed to change the up/down offset position of the rear axle on the TAMIYA F103RM chassis. It serves as a tuning piece to alter rear track and toe characteristics without modifying major suspension components.

Fitment and role: the spacer shifts the axle mounting plane up or down in small steps, allowing controlled changes to rear geometry for improved corner behaviour or to correct handling balance after other setup changes. It is intended for racers and hobbyists who tune chassis balance and rear traction at the wheelbase and axle level.

Installation notes: the part replaces or stacks with the stock axle spacer pieces on the F103RM rear axle assembly. Standard workshop tools used on 1:10 touring car maintenance are sufficient, and care should be taken to maintain proper axle preload and wheel alignment after installation. Always verify clearance with body and suspension components after changing offset.

Use this spacer as a precise tuning option when refining rear-end grip and turn-in behaviour on Tamiya F103RM setups; pair changes with measured testing to find the best balance for your track conditions.