Enthusiasts tuning their T4 platform will find the XRAY 305915 Narrow Pinion Gear useful for reducing drivetrain inertia. Constructed from high-grade duraluminum, the pinion is 1.5mm slimmer and roughly 25% lighter than stock pinions, which aids initial spool and overall drivetrain efficiency.
Manufactured on a modified precision gear machine, these pinions are produced with strict tolerances and concentricity control. Chamfered tooth edges improve engagement, and the specialised hard-coating preserves the tooth form under regular running conditions.
This XRAY 305915 Narrow Pinion Gear fits many spur gear setups, including XRAY spurs, and typically reduces audible gear chatter for a neater drive feel. The part is supplied ready to mount for quick trackside swaps.
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