FEULING PARTS VALV SPRINGS ECON05-17 TC 1121 yamaha-yzf-r7--rm01--750-1999-esi5903449 Diameter Ø (mm): 52

Diameter Ø (mm): 52

Electrosport Stators are designed to be direct replacements to original equipment manufactured to handle higher power loads developed in the USA of the best value for money oem_numbers: 21003-0010

ergonomic cutting and appearance

-E-approved

FEULING PARTS VALV SPRINGS ECON05-17 TC 1121 yamaha-yzf-r7--rm01--750-1999-esi5903449 Diameter Ø (mm): 52Made from Premium Stress Relieved Conical Ovate Wire, Features Extremely High Level of Fatigue Life, Uses A Much Smaller and Lighter Weight Retainer to Reduce Valve Weight and Create Quicker Rev and Smoother Motion, Designed to Handle The Demands of Performance CAMSHAFTS, KIT INCLUDES: ECONO Beehive Valve Springs, Lightweight 7 Steel Retainers, Machined Heat Treated Chromoly Spring Seats, Seat Shims, Valve Locks and a Set of Premium Viton Valve seals