FEULING PARTS Endurance Beehive® Valve Springs with Titanium Retainers — up to 0.650" lift, Chrome-Silicon, Titanium retainers, Kit – 05-17 Dyna, 03-16 Touring, 09-16 Trike, 05-17 Softail, 04-20 Sportster

Precision machined from premium-grade hi-tensile chrome silicon single-conical ovate wire for consistent spring rate and extended service life. 🔧

Shot-peened with a specially processed thermal heat treat and finished with super NexTex® to meet the fatigue-life demands of V-Twin engines.

Uses a much smaller, lighter retainer to reduce valve mass for quicker rev response and smoother valve motion.

Kits include Endurance BeeHive® valve springs, lightweight 7° super titanium heat-treated retainers, machined spring seats, seat shims, valve locks and premium Viton® valve seals with a spring-loaded valve stem wiper system.

Seat lb / installed height: 198 lb @ 1.685" (0.535" lift); 194 lb @ 1.703" (0.553" lift); 190 lb @ 1.724" (0.574" lift); 187 lb @ 1.754" (0.604" lift); 185 lb @ 1.780" (0.630" lift); 160 lb @ 1.800" (0.650" lift). Open height: 375 lb @ 1.150"; coil bind @ 1.100".

Must be installed at the correct open height, matching max lift to the open height spec of the valve springs. Feuling® BeeHive® kits are direct replacement up to 0.574" lift for '98-'04 Big Twin and '86-'03 XL, and up to 0.650" lift for '05-'17 Twin Cam.