Serpent 903799 Lightweight 18T Aluminum Pinion for XLI Gen2  [SER903799]

Featherweight Accuracy for Racing Drivetrains

For racers focused on lap times, the Serpent 903799 Aluminum 18T Pinion Gear upgrades an XLI Gen2 drivetrain by trimming weight without sacrificing strength. Machined from quality aluminum, it helps reduce rotating mass to improve acceleration and throttle response.

Durable Aluminum Construction

The aluminium-tooled finish on this pinion balances toughness with low weight, resisting wear during competitive runs while keeping inertia down. That combination leads to a more responsive power transfer and longer service life under race conditions.

Engineered for XLI Gen2 Integration

Made to mesh precisely with the XLI Gen2 spur gear, the 18T tooth profile maintains smooth engagement and consistent gear mesh. Accurate sizing and clean machining reduce drivetrain lash and help avoid premature wear.

Simple Upgrade for Track Use

Installation is straightforward for hobbyists familiar with gear swaps, offering immediate gains in handling and acceleration. The Serpent 903799 works well for those seeking a no-nonsense performance upgrade for club and regional racing.