700c, 27-Inch & 650c

Origin-8's Track Attack 42mm Fixie Wheelset comes in a rainbow of colors, from the subdued to the bold, so you'll know your ride is the sharpest on the block. But, they're not just a pretty face. They feature 42mm deep aluminum rims, sealed cartridge bearings and reliable DT Swiss spokes to roll strong and sure over less-than-ideal surfaces. And, they come with a flip-flop rear hub so you can choose between fixed and freewheeling!

- Origin8 Bolt high profile T700 UD carbon tubeless ready clincher with 255C high TG epoxy resin and Basalt braking surface - Origin8 Elite road hubs with anti-bite Shimano cassette body featuring 6 pawl/48 point/7.5-degree engagement - 20 hole QR front/24 hole QR rear road hubs laced with straight pull Sapim CX-Ray spokes - Weight: 708g front/850g rear - ISO-Road certified and assembled in the USA - Width ID (mm): 17.5 - Axle: QR - Rim Color: Blk - Rim Model: OR8 Bolt Carbon Road - Hub Model: OR8 RD-1110 Elite Road - O.L.D.: 100mm/130mm - Hub Color: Blk - Gears: 8-11s Cass - Brake Type: Rim - Spoke Type: Sapim CX-Ray BK - Spoke Count: 20F/24R - Wall: Dbl - Valve: PV - Type: Tubeless Compatible