Swap in the XRAY 305922 Narrow Pinion Gear to reduce rotating mass on T4 2017 cars. Fabricated from duraluminium, the 22T/48 unit is engineered to be 1.5mm narrower and roughly 25 percent lighter than ordinary pinions, while maintaining close concentricity for reliable tracking.
Each pinion receives a specialised hardcoat to improve scratch and wear resistance, and the chamfered tooth profiles assist smooth engagement. A proper run-in ensures the pinion seats correctly with compatible spurs, helping to lower drive train noise.
Targeted at racers and tuners, the narrow pinion helps produce cleaner throttle transitions and improved response. Its lightweight, precise construction supports tighter control and reduced drivetrain inertia during competition runs.
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