Not to be confused with a fork conversion kit, this simple adapter will convert any 15x110 Boost hub to 12x110 Boost. Continue using your 15x110 Boost wheel with your converted 12x110 Boost fork or use your 15x110 Boost wheel with any native 12x110 Boost fork.
Combine this hub adapter with these 15 mm x 5 mm spacers plus a disc rotor spacer to mount a 15x100 hub in a 12x110 Boost fork. See related products below.
Note that some MTB hubs may have 21 mm diameter end caps which may not fit certain 12x110 Boost forks which have been designed for only 19 mm diameter end caps. Please measure both the fork and hub to confirm before ordering (reference images above for how to measure).