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Showing 21-32 of 32 products:
Project 321 Boost Loud IS-Disc Rear Hub, 32h,12 x 148mm (MS) - Gold 
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 
Project 321 Boost Loud IS-Disc Rear Hub, 32h, 12 x 148mm 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
your price $415.00 + ships free
Info 
Project 321 Boost Loud IS-Disc Rear Hub, 28h,12x148mm(MicroSpline) - 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
your price $415.00 + ships free
Info 
Project 321 Boost Loud IS-Disc Rear Hub, 28h, 12x148mm (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
your price $415.00 + ships free
Info 
Project 321 Boost Loud IS-Disc Rear Hub, 28h, 12 x 148mm (HG) - Blk 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
your price $415.00 + ships free
Info 
Project 321 Boost Disc Front Hub, 32h, 15x110mm, Black Info
Comes standard with 2 ABEC 5 Enduro bearings Flange angles allow the spokes to only touch at the bend of the spoke and nowhere else to create … read more
your price $185.00 + ships free
Info 
Project 321 Boost Disc Front Hub, 32h, 15x110mm - Turquoise Info
Comes standard with 2 ABEC 5 Enduro bearings Flange angles allow the spokes to only touch at the bend of the spoke and nowhere else create … read more
your price $185.00 + ships free
Info 
Project 321 Boost Disc Front Hub, 32h, 15x110mm - Red Info
Comes standard with 2 ABEC 5 Enduro bearings Flange angles allow the spokes to only touch at the bend of the spoke and nowhere else create … read more
your price $185.00 + ships free
Info 
Project 321 Boost Disc Front Hub, 32h, 15x110mm - Purple Info
Comes standard with 2 ABEC 5 Enduro bearings Flange angles allow the spokes to only touch at the bend of the spoke and nowhere else create … read more
your price $185.00 + ships free
Info 
Project 321 Boost Disc Front Hub, 32h, 15x110mm - Orange Info
Comes standard with 2 ABEC 5 Enduro bearings Flange angles allow the spokes to only touch at the bend of the spoke and nowhere else create … read more
your price $185.00 + ships free
Info 
Project 321 Boost Adapter Rear Axle Kit, Black Info
Adapt your Project321 hubs to fit Boost 15x110 forks and 12x148 frames Made in the USA Item Specifications description: Boost Adapter … read more
your price $72.00
Info 
Project 321 Boost Adapter Front End Cap Kit, Black Info
Adapt your Project321 hubs to fit Boost 15x110 forks and 12x148 frames Made in the USA Item Specifications description: Boost Adapter … read more
your price $44.00
Info 
The hub drilling is the number of spoke holes. It must match your rim spoke count.
12mm Thru x 148 thru axles are often called "Boost"
We define color as the main color of the item. It may have accents or highlights in other colors.
This should correspond to the type of brakes you have on the bike.
10x1 Threaded x 120mm
10x1 Threaded x 130mm
10x1 Threaded x 135mm
12mm Thru x 135mm
12mm Thru x 142mm
3/8" Threaded x 135mm
QR x 126mm
QR x 130mm, often called QR or Quick-Release road standard.
QR x 135mm, often called QR or Quick-Release mountain / hybrid standard.
12 x 157 axles are often called "Super Boost"
3/8" Threaded x 126mm
QR x 170mm
12mm Thru x 197mm
12mm Thru x 177mm
3/8" Threaded x 170mm
3/8" Threaded x 130mm
QR x 141mm
12mm Thru x 150mm
3/8" Threaded x 148mm axle
3/8" Threaded x 142mm
3/8" Threaded x 117mm
14mm Threaded x 135mm
12mm Thru x 190mm
12mm Thru x 170mm
This is hub spacing and is the width of the hub. It must match your fork specifications.
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.