Box One 451 Rim-Rear-28H-20x1 1/8" chainring-bolts FIT: 4-Bolt bolt pattern for

FIT: 4-Bolt bolt pattern for 104mm spiders

WORKING SIZE: 20x1

PROCESS: Extruded Precision CNC

Sealed Bearings

WEIGHT: 15

Box One 451 Rim-Rear-28H-20x1 1/8" chainring-bolts FIT: 4-Bolt bolt pattern forThe Box One 451 Rim Rear 28H 20x1 1 8" is as low profile as it gets. All the better to be lightweight and speedy. Featuring double walled aluminum, eyeleted construction. This rim does have a sidewall braking surface, so it can and should be used on the rear of your bike. FEATURES Optimized Internal Geometry Presta Valve Hole Machined Brake Track Stainless Steel Eyelets Brake (Rear) and Brake Less (Front) Profiles Low Profile Design COMPATIBILITY Box