The Tamiya 9805933 Stiffener Spacer set is a four-piece kit designed to strengthen the TRF415 chassis for improved stability on fast courses. Each spacer aligns with factory mounting points for straightforward fitting.
Reducing chassis flex helps the car track truer through fast corners and reduces unpredictable behavior under load. This upgrade supports consistent tyre contact and more reliable lap-to-lap performance.
These spacers are best used on higher grip surfaces or when aiming for sharper turn-in and mid-corner stability. They pair well with tuned suspension setups where chassis stiffness is part of the tune.
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