CHAIN TENSIONERS

Box One Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weightA minimalist design adds style while reducing their overall massLaser-etched graphics that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability10mm7075ALBlack

Box One Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weightA minimalist design adds style while reducing their overall massLaser-etched graphics that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability10mm7075ALBlue

Box One Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weightA minimalist design adds style while reducing their overall massLaser-etched graphics that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability10mm7075ALRed

Box One Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weightA minimalist design adds style while reducing their overall massLaser-etched graphics that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability10mm7075ALSilver

Not too hot, not too cold. Box Two Chain Tensioners let you dial in your chain tension so it`s just rightTwo mounting holes provide room for ample adjustment on most framesWhen used properly, Box Two Chain Tensioners help protect frame dropouts and keep your rear wheels locked in place where they should be10mmBlue

Not too hot, not too cold. Box Two Chain Tensioners let you dial in your chain tension so it`s just rightTwo mounting holes provide room for ample adjustment on most framesWhen used properly, Box Two Chain Tensioners help protect frame dropouts and keep your rear wheels locked in place where they should be10mmRed

Genuine SE Bikes chain tensionersImproved design and functionEasily adjusts to take up chain slack3/8`AlloyPurple

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combinationSold in pairs for 3/8` or 14mm axles in various offset sizesSturdy and dependable 6061-T6 alloy construction14mm x 1.5-2mm6061-T6Black

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combinationSold in pairs for 3/8` or 14mm axles in various offset sizesSturdy and dependable 6061-T6 alloy construction14mm x 2.5-3mm6061-T6Black

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combinationSold in pairs for 3/8` or 14mm axles in various offset sizesSturdy and dependable 6061-T6 alloy construction14mm x 3.5-4mm6061-T6Black

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combinationSold in pairs for 3/8` or 14mm axles in various offset sizesSturdy and dependable 6061-T6 alloy construction14mm x 4.5-5mm6061-T6Black

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combinationSold in pairs for 3/8` or 14mm axles in various offset sizesSturdy and dependable 6061-T6 alloy construction14mm x 5.5-6mm6061-T6Black