On Sale

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combination
Sold in pairs for 3/8` or 14mm axles in various offset sizes
Sturdy and dependable 6061-T6 alloy construction

Highest tensile strength 3/32 chain on the market
Heat treated links with mushroomed pins support a tensile strength of over 1300kgf
Proprietary link design
Comes in a sweet coffin box

Box 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 that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability

The original half link chain
Compatible with 8 tooth and up drivers
Colored models are Teflon coated for reduced friction
98 Link chain with 2 master pins
Comes in a sweet coffin box

The original half link chain
Compatible with 8 tooth and up drivers
Colored models are Teflon coated for reduced friction
98 Link chain with 2 master pins
Comes in a sweet coffin box

The Chainbow chain protector is made of impact-resistant black plastic and aluminium offering full coverage and perfect protection
Thanks to the telescoping function and the variable positioning of the bracket the chain protector is adaptable to many geometries and component combinations

CNC machined AL6061-T6 alloy construction
Great for all single speed applications
Anodized finish
Made in the USA

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combination
Sold in pairs for 3/8` or 14mm axles in various offset sizes
Sturdy and dependable 6061-T6 alloy construction

Universal bottom bracket style mount
44T maximum chainring size
Impact resistant plastic

Box 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 that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability

The original half link chain
Compatible with 8 tooth and up drivers
Colored models are Teflon coated for reduced friction
98 Link chain with 2 master pins
Comes in a sweet coffin box

Forged alloy construction
Double bolt centering design
Oversize 6mm hex bolts

The original half link chain
Compatible with 8 tooth and up drivers
Colored models are Teflon coated for reduced friction
98 Link chain with 2 master pins
Comes in a sweet coffin box

Fits 3/8` Axles
Lightweight, compact design
Forged alloy construction
Chromoly bolt

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combination
Sold in pairs for 3/8` or 14mm axles in various offset sizes
Sturdy and dependable 6061-T6 alloy construction

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

Adjusts rear wheel for centering in frame

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combination
Sold in pairs for 3/8` or 14mm axles in various offset sizes
Sturdy and dependable 6061-T6 alloy construction

Genuine SE Bikes chain tensioners
Improved design and function
Easily adjusts to take up chain slack

CNC machined 6061-T6 aluminum chain tensioners
Compatible with 3/8 inch and 10mm axles
Single bolt operation makes tensioning a simple task

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

CNC machined 6061-T6 aluminum chain tensioners
Compatible with 3/8 inch and 10mm axles
Single bolt operation makes tensioning a simple task

Box 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 that include wheel position guides and two 10mm mounting holes with 15mm of adjustment to ensure perfect adjustability

Genuine SE Bikes chain tensioners
Improved design and function
Easily adjusts to take up chain slack

CNC machined 6061-T6 aluminum chain tensioners
Compatible with 3/8 inch and 10mm axles
Single bolt operation makes tensioning a simple task

Genuine SE Bikes chain tensioners
Improved design and function
Easily adjusts to take up chain slack

Solid, non-adjustable chain tensioners compatible with any frame, chain and chainring combination
Sold in pairs for 3/8` or 14mm axles in various offset sizes
Sturdy and dependable 6061-T6 alloy construction

Genuine SE Bikes chain tensioners
Improved design and function
Easily adjusts to take up chain slack