After tens of thousands of miles of operation, the engine valves will wear out. The Intake / Exhaust valve is the important parts of four-stroke engine. Valve Shim Kits. for Honda CRF250R 2004-2007.
2/4/8/16Pairs Motorcycle Engine Parts Intake Valves Stem Kits For ZRX400(8x intake 8x exhaust)
MX Intake Exhaust Valves Kits For Honda CRF 250 R 04-07 CRF250X 04-09 12-16 17
2Pcs Universal Valves Stems Tubeless Tyre Rubber Valves for Motorcycle Car Bike
For Kawasaki 06-08 KX 450F 4Pcs MX Intake Valves Exhaust Valves KX-F 450 KX450F
Motorcycle Intake Valves Stem Kit Fit For CBR400 NC23 NC29 CBR23 CB29 CB400 NC31 CB31 14711-KY2-010(1x intake 1x exhaust)
Motorcycle Intake Valve Stem Fit For WR450F YZ450F 2003-2009 YFZ450 YFZ450R 2004-2018(3pcs Intake Valves)