The Serpent 903365 2-Speed Gearbox Spacer set is a compact upgrade for hobby racers who want cleaner gear engagement and better spacing control. These spacers are crafted to provide precise alignment and optimal spacing inside the gearbox, helping gear changes feel crisper while supporting long term durability. Compatible with a wide range of RC models that use two-speed transmissions, they are an easy way to refine driveline setup for racing.
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