B1 Chain Holder Makes Bicycle Cleaning, Traveling Smooth as Butter
Handmade in Boulder, CO, Butter’s B1 chain holder classes up the dirty act of chain maintenance.
Made of machined billet alloy, the chain slides across a lathed Delrin spool. The whole thing is held in place with a strong spring and steel axle.
Butter says they’re also great for travel, keeping the chain in place inside a bike case (assuming you don’t remove the rear derailleur, anyway).
They retail for $40 each, including shipping. Add $5 for international orders. More pics below…