The SPYKE Jackshaft Kit is a purpose‑built starter assembly designed for street‑oriented motorcycles. Engineered with a nine‑tooth gear, the kit delivers reliable engagement and smooth power transfer during engine start‑up, ensuring consistent performance under everyday riding conditions. Delivered as a complete kit, the component integrates directly with the vehicle’s existing electrical system, simplifying installation while maintaining the precise tolerances required for optimal starter operation.
Two model‑specific configurations are offered to match the original equipment specifications: the JACKSHAFT 89‑93 BT for earlier‑generation machines and the JACKSHAFT 94‑06 BT 10T for later models. Both variants retain the same nine‑tooth design, providing a seamless replacement that preserves factory‑level reliability and durability for street‑focused riders seeking a dependable starter solution.