Box One 3/8" BMX Chain Tensioners - Pair - Black 4" including a keyring lanyard (because

including a keyring lanyard (because we all know the struggle of losing our keys)

8mm) and 1/8" teeth

threaded steel post

The hubs are blue anodized alloy high flange sealed bearing with Machined Jelly Bean cut-outs on the flanges and 3/8 axles front & rear

one-piece brake shoes developed by Promax specifically for the P-1 brakes

Box One 3/8" BMX Chain Tensioners - Pair - Black 4" including a keyring lanyard (becauseBox 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, including laser etched graphics with 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. Axle: 3 8" (10mm) Material: Aluminum Hardware: Stainless