Butter B2 Chain Keeper



Butter's B2 is a premium quality chain keeper for bikes with thru-axle dropouts. The Butter B2 chain keeper is the most elegant, concise solution to securing your chain. 142 x 12mm rear end? No problem the B2 chain keeper is universally adaptable with mountain, road or cross bicycles. Whether storing or cleaning your beloved bike, the B2 is a crucial, component of a mechanic's toolkit that is needed to finish the job. The adaptable design of the b2 makes it easy to use, foiling the bike industry's lack of standardization. Slide it into the axle dropout, twist, and you're locked and loaded. Dog Ear Technology© orients the tool's position and locks the b2 into the dropout to automatically prevent rotation. Outstanding build quality ensures that it won't wear out or break. Proudly, the b2 is manufactured entirely in America from top grade materials and hand assembled in Boulder, Colorado.The b2 works on all 142 x 12mm thru axles and is not compatible with 10mm diameter axles or any other non-standard variants i.e. the new Focus bikes RAT system hybrid axle.

Compatibility 142 x 12mm thru-axle dropouts

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