It also works very well with 9-speed road derailleurs

For the roughest road conditions You asked and we delivered

Weight: 65g (SM-BB9000) 54g (SM-BB92-41B)

Foldable Aramid Bead Core

15mm offset

K-EDGE NiteRider Adapter: K-EDGE Go Big Mounts and Combo Mounts - Gun Metal FBPost It also works very wellLight adapter converts a NiteRider Rail interface to a K EDGE Go Big Mount interface. Compatible with NiteRider Lumina and Mako Series lights. Enables compatibility with K EDGE Go Big Mounts and Combo Mounts with GoPro style interface Includes two M4 Mounting bolts with Nylok Nuts Precision machined 6061 T6 Aluminum Weight: 11. 5 g