The 3Racing Graphite Main Shaft is an easy upgrade for Tamiya F103RM models that want reduced weight at the driveshaft. Designed for the F103RM platform, it replaces the OEM shaft to give a cleaner feel to acceleration and steering inputs.
Graphite delivers a favourable strength to weight ratio, cutting rotating mass while keeping lateral rigidity. This helps improve transient response and can make the car feel more nimble through quick direction changes.
Fitting the shaft uses the same mounting points as the original part on the Tamiya F103RM. Before final assembly confirm bearings and surrounding parts are debris free, and run a short shake down to ensure true rotation.
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