Zipp Super-9 Track B1 Wheel Rear 700C / 622 Bolt-on 120mm Fixed MFPN=00.6418.016.004 Alternating wide/narrow tooth pattern prevents

Alternating wide/narrow tooth pattern prevents chain derailment

Super long arms with elongated pad slots for 55-73mm reach

Small square knobs deliver consistent bite into a variety of terrain while the ample spaces between them prevent packing up when conditions are wet

EC44/40 upper/lower lower stack 12mm color blue weight 53g

5 Bike Attachment On wheels Maximum Weight per Bike 40 lb Number of Bikes 3 Hitch Size 2 Foldable Rack Yes Car Rack Material Steel

Zipp Super-9 Track B1 Wheel Rear 700C / 622 Bolt-on 120mm Fixed MFPN=00.6418.016.004 Alternating wide/narrow tooth pattern preventsClincher rim designed specifically for the velodrome Small hook tire bead designed for aero efficiency, and track specific carbon laminate Fastest with 23mm tires on the velodrome The wheel remains flat from its widest point to the hub and features a proprietary textured surface SRAM Model ID: WH SP9 TLTK B1 TECH SPECS Axle Type Bolt on Hub Model ZR1 Track Rim External Width 27. 5mm Valve Presta Rim Color Black Wheel Diameter ISO 700C 622 Rim inner