Adjusting chain tension is quick and easy with the new Box Three™ Chain Tensioner. With a single-hole "lollipop" design, these tensioners reduce weight and help keep your rear wheel locked in place.
New and Improved 20mm of Adjustment Single Axle Position Slotted for Dropout ED Black Hardware Anodized Finish
Axle Size 10mm (3/8") only Material 6061-T6 Aluminum Hardware Stainless Steel
