Box Two Chain Tensioners let you dial in your chain tension, so it’s just right. Two mounting holes provide room for ample adjustment on most frames. When used correctly, Box Two Chain Tensioners help protect frame dropouts and keep your rear wheels locked in place where they should be.

Material: 6061-T6 Aluminum
Process: Extruded & CNC Machined
Hardware: Stainless Steel
Finish: Anodized w/Laser-Etched Graphics
Size/Compatibility:
Axle: 10mm
Adjustability:
Wheel Position: 30mm
Weight: 55g