The XRAY 305920 Narrow Pinion Gear is an effective upgrade for T4 2017 Specs cars where reducing rotating mass helps lap times. Constructed from aircraft-grade duraluminum, this pinion is 1.5mm thinner and around 25 percent lighter than standard options, delivering a noticeable reduction in drivetrain weight.
Manufactured with XRAY's adapted precision gear machinery, the narrow pinion benefits from very tight tolerances that support superior concentricity. Chamfered teeth are finished with a specialised hardcoat to protect profiles and extend service life.
Compatible with common spur gears, the XRAY 305920 Narrow Pinion Gear pairs particularly well with XRAY spurs to ensure clean contact and lower throttle noise, improving overall drivetrain efficiency and feel.
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