
Manufacturer Ref: 1100 — Brand: FEULING PARTS
Endurance Beehive® valve spring kits designed for V-Twin engines, combining high-performance materials and industrial finish for enhanced durability.
The springs are sized for direct replacement without machining or modification of the rocker cover up to 0.574" lift for '98-'04 Big Twin and '86-'03 XL, and up to 0.650" for '05-'17 Twin Cam. Larger camshafts may require machining of the valve guide for seal clearance.
Load characteristics / heights:
Important: install the kit at the prescribed open height; the maximum lift must match the spring specification. Ideal for riders seeking reliability, lightweight, and optimized valve response on Vintage/Classic, Touring, and Roadster models.