Raptor 700 R&D Valve Spring Kit with Chromoly Retainers
R&D has developed an economical solution for upgrading the upper valve train by offering a one stop shopping parts upgrade kit in an economical price range. The kit includes their Super Single chrome silicone valve spring, precision machined premium grade chromoly top spring retainers, and custom designed bottom spring/locator cup. The R&D Super Single (Bee-Hive) Valve Spring Kit is a recreational and race upgrade favorite which offers great valve control and adds improved strength and reliability by changing out the stock steel retainers known to crack for super strong, lightweight chromoly.