Project 321 Boost Loud IS-Disc Rear Hub, 32h,12x148mm (XD) - Blue

We define color as the main color of the item. It may have accents or highlights in other colors.

The hub drilling is the number of spoke holes. It must match your rim spoke count.

This should correspond to the type of brakes you have on the bike.

12mm Thru x 148 thru axles are often called "Boost"

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