Description:8mm/10mm Inner diameterUniversal fit for most Motorcycle, Dirt Bike, ATV, Scooter,MotocrossProlong the chain service span and solve the problem of manual adjustment chain

Prevent the chain fall for flabby that improve the safety of driving

Abrasion resistant and durable,greatly improving the tire inadequacies

Easy to install and convenient to carry

Specification:Material:plasticInner diameter:10mmSize:34*35*35mm/1

34*1

38*1

38inchPackage Includes:1 Piece Chain Roller Guide TensionerNote:If you need to modify the bearing with 8mm inner hole, please select the one with 8mm inner hole

Most BSE cars have 10mm inner holeThank you