8mm 0.31" 10mm 0.39" Chain Roller Tensioner Wheel Guide for Dirt Bug Mini Bike 110cc 125cc 140cc 150cc Dirt Pit Trail Bike ATV Quad Motorcycle BlueColor: BlueFitment — Fits for Baja DB30 doodlebug dirt bug mini bike, 110cc 125cc 140cc 150cc SSR XR125 CRF50 KLX110 dirt pit trail bike ATV quad motorcycle motorized bicycle. Size — 4.37 x 2.95 x 1.5 inches. Material — High quality rubber + metal, waterproof, tough and wear-resistant. This product measures 4.37 x 2.95 x 1.5 inches.