Butter B2 Chain Keeper Tool for 12mm Thru-Axle
Butter's B2 chain keeper makes cleaning your chain a snap. Remove the rear wheel, install the B2, and rotate the cranks as usual. The Butter B2 keeps the chain in place and running free so you can easily clean and lubricate it.
The B2 is also great for travel when you are transporting your bike with the wheels off.
- Sturdy aluminum, stainless steel, and delrin construction will never wear out or break
- Manufactured and assembled in Boulder, Colorado
Fits just about ever 12 x 142mm thru-axle bike out there, including road, MTB, cyclocross, and gravel; with the exception of non-standard axle variants like the Focus RAT axle.
It's simple. It's smooth. It lasts. It protects. It's butter.
Free shipping on orders over $50 with delivery to the 48 continental United States. More shipping methods and rates.
Return any new and unused item for a full refund (less shipping charges) within 30 days of your purchase. See full return policy.
Call or text (909) 283-3391 for questions or help, anytime.