Box One Chain Tensioner 10mm x 2 Axle Hole chainring With precision sealed bearings and

With precision sealed bearings and cold-forged

They also work well with BMX 3/32" Chainrings and Cogs

it quickly proved itself on unpowered MTBs as well

The Box One Shiftmix adapter allows any Box shifter to mount to a Magura shiftmix compatible brake

Box One Chain Tensioner 10mm x 2 Axle Hole chainring With precision sealed bearings andBox One Chain Tensioners are extruded then CNC machined from 7075 aluminum for an optimal balance of strength and weight. A minimalist design adds style while reducing their overall mass. Laser etched graphics include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability. Fits most frames every time you remove and replace your wheel. When used correctly, Box One tensioners will protect your frame