Wolf Tooth B-RAD Base Mount - Black - 4 Slot YGroup_7033458688045 These Enduro ACB (Angular Contact

These Enduro ACB (Angular Contact ABEC 5 Bearings) are specifically for bottom brackets that run 24mm bearing on both sides such as Shimano

This is not ideal for bikes with dropper posts as rear-wheel clearance can be an issue

Works with Presta and Schrader valves

It can even be mounted around your steerer tube spacers if you have room

11 speed chains

Wolf Tooth B-RAD Base Mount - Black - 4 Slot YGroup_7033458688045 These Enduro ACB (Angular ContactB RAD (Be Rad), Bottle Relocation and Accessory Device, is an innovative and extremely flexible system for organising on bike bottle and accessory storage using bottle cage mounts. The system includes 3 different mounting bases, the B RAD 2, 3 & 4, and a growing number of mountable accessories. This product page is for the mounting bases. The rest of the B RAD system accessories mount to these bases. See compatibility section below for dimensions. B