TMD Roller kit includes both an upper and lower roller. Model specific dual roller kit with raised Powerlip. Includes two rollers. One upper and one lower mounting locations. Suitable for all types of riding. Powerlip design reduces chain drag and side plate wear. Offset Powerlip allows for adjustment to chain center line. Friction reducing additives and UV protection to eliminate color fade. Sealed bearings are ABEC & 9002 ISO rated for superior rolling and long life. New specific fit hardware is included. Used by championship winning race teams worldwide. Made in the USA. Fitment:HONDA (90-04) CR 125, 250, 500 HONDA (04-05) CRF 250XHONDA (2004) CRF 250R