SprocketsSprockets, Chains, AccessoriesTriple-SprocketsTriple-Sprockets DRS with One-Sided Hub, Pitch 3/4 x 7/16", ISO 12 B-3Triple-Strand Sprockets DRS, with One-Sided Hub
SprocketsSprockets, Chains, AccessoriesTriple-Plate Wheels DRL without Hub, Pitch 3/4 x 7/16", ISO 12 B-3Triple-Plate Wheels DRL, without HubTriple-Sprockets