Reverse Single-Speed Kit Convert To Single-speed Got gears? Well, you shouldn't. The Reverse Single-Speed Kit converts your conventional hub with a Shimano-HG freewheel body to a single-speed drive. Thanks to the seven different spacers, the cog can be optimally positioned on the freewheel body to guarantee a straight chain line. The cog comes with an extra wide flange of 7mm, which improves the power transmission gently to the freewheel body. The common width of the flange is only 2. 8mm, which can cut into the softer aluminum freewheels easily, which can lead to permanent damage to the freewheel body. Features7mm wide flange improves the power transmission gently to the freewheel body Convert your conventional hub to a single-speed drive The cog can be optimally positioned thanks to seven different spacers | Reverse Components | Reverse Single Speed Kit | Light Blue | 13T