this is a smart upgrade
AND XR400R MODELS AND YEARSHotcams Stage 2 camshaftCam bearingsKibblewhite race valve spring kitBASE WASHERS NOT INCLUDED USES OEMKibblewhite stainless steel intake and exhaust valvesValve stem sealsValve keepersHeavy duty cam chain conversionNo head mods are necessary and this will work great with your stock or built motor
but Stage 2 Hotcams typically deliver noticeable improvements in horsepower
2011 - WR450F
16-19 Yamaha YZ250X YZ 250X WISECO Heavy Duty Forged Clutch Basket & Clutch Kit Triumph 500 this is a smart upgradeWPP3012, 2YZHDC, 5DJ 16150 00 00, 3XK 16321 00 00, 90501 237L0 00, 90501 237L0 00, 4X7 16325 00 00, 196270875076, H054, FSC213 8 001, CS216 6 0315, M054 Get that Holeshot with the All New 16 19 Yamaha YZ250X Wiseco Heavy Duty CNC Forged Clutch Basket and BPRATV Clutch Kit (Fibers, Steel Plates, and Springs) Precision CNC machined Forged clutch basket improves performance and increases clutch life Complete clutch kit includes heavy duty steels, fibers