Tamiya F103RM Rear Axle Offset Tuning Spacer F103RM-03 by 3Racing  [F103RM-03]

Product summary

The F103RM-03 offset spacer is designed for the Tamiya F103RM chassis to move the rear axle mounting plane up or down in controlled steps. It is a tuning aid focused on adjusting rear track and toe without replacing primary suspension components.

Purpose and effects: changing the axle offset modifies rear track width and toe tendencies, which can help with corner entry, rotation and exit grip when dialling chassis balance.

Installation notes: the spacer fits into the rear axle stack, replacing or adding to stock spacer parts. Install with standard RC touring car tools, check axle preload and wheel alignment, and verify there is no body or suspension interference after the change.

Use this spacer as a fine-tuning option and pair each offset change with measured testing to find the most consistent handling for your tyres and surface.