Wide Compatibility :Compatible with Honda R series motocross bikes CR 80/85 1998 - 2008 CRF 150R 2007 - 2022 CR 125 1995 - 2008 CR250 1995 - 2008 CRF 250R/X 2004 - 2022 CRF 450R/X/L 2004 - 2022. Chain Tension Control: Used to adjust rear wheel alignment and maintain proper chain tension for safe riding. Material: Feature Made of stainless steel for strong resistance to rust, dirt, and off-road conditions. Maintenance Support: Ideal for routine chain adjustments or replacing worn adjuster bolts on dirt bikes. A set of stainless steel chain adjuster bolts: You will receive 2x m8 bolts & 2x flange nuts to match. Item Weight 2.11 ounces Manufacturer ECSiNG Package Dimensions 3.15 x 2.36 x 0.59 inches