SPRNG KIT .610 LIFT EVO 84-99 TC '99-04 5/16 STEM VALVES STEALTH LED FLUSH MOUNT PODS FLOODOPEN TRAIL PRO-X connecting rod kits are

PRO-X connecting rod kits are made out of the toughest alloys available today

72 Gear teeth for a precise 5° sweep

2010 Harley Davidson FXDC Dyna Super Glide Custom

3mm wall thickness in the grip area effectively dampens vibrations

SPRNG KIT .610 LIFT EVO 84-99 TC '99-04 5/16 STEM VALVES STEALTH LED FLUSH MOUNT PODS FLOODOPEN TRAIL PRO-X connecting rod kits areWound from Premium Kobe Super Clean Chrome Silicon Wire. KPMI valve springs are heat treated, stress relieved and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass and operating rpm.