4mm Hex/ Eccentric BB Wrench


In the interest of making your Co-Motion easier to service, we have sourced a snub nosed 4mm hex wrench to fit behind the crank arms from Bondhus, the premier maker of hex-key tools. With this tool you can easily access the eccentric’s self-locking set screws when you need to tension, adjust or remove your timing chain (or belt). This wrench also features a ball end on the long side, which is great for water bottle bolts.

Handle length: 100mm (4") 

Snub end length: 10mm (3/8")