Color: Black Material: Steel 18 teeth 17T - 18T are semi-hollow Designed for the 1/2" x 1/8" wide chain For use with Dia-Compe, Novatec, Sturmey Archer and other rear hubs. Requires lockring installed
For use with fixed gear, track, road bicycles Manufacturer: ZOOM Model: DR-AL-130 Material: alluminium Color: black Width: 420 mm (from centre to centre) Clamp Diameter: 25.4 mm Type: Pista Reach: 105 mm Drop: 165 mm Weight: 347 g