The Serpent 903808 Oneway Differential Outdrive fits the 9XX family and focuses on cleaner power transfer during acceleration. It helps your model hook up sooner off the line and makes throttle modulation more predictable for faster lap times.
Designed with durability in mind, the Serpent 903808 outdrive reduces common wear points and keeps drivetrain backlash low. That makes it a straightforward upgrade for hobbyists who want reliable handling under race conditions.
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