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- Project 321
- 6-Bolt Disc
- 12mm Thru x 157mm
Project 321 6-Bolt Disc 12mm Thru x 157mm Bicycle Rear Hubs
This should correspond to the type of brakes you have on the bike.
12 x 157 axles are often called "Super Boost"
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Project 321 Super Boost Loud Disc R Hub, 28h,12x157mm (XD) - Black 
Info
Very low drag freehub. Quiet pawls produce 68% less drag than previous system, loud pawls produce 51%less 6x2 pawl driver yields 1.7 deg … read more
Ships Freeyour price $415.00 + ships free
Info 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"
12 x 157 axles are often called "Super Boost"
Buy this product and your entire order ships for free.
Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.