Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits Red length-35mm 37 Spindle Interface Type SRAM/Truvativ

37 Spindle Interface Type SRAM/Truvativ GXP Weight 98 BB Shell Width (mm) 68 BB Shell Width (mm) 73 BB/Frame Interface English

Ring Position/Type Chain Retaining Single RingTooth Count 52Drivetrain Speeds 12Round or Oval RoundChainring BCD 110Material AluminumColor BlackDefined Color Black

Rotating brushes clean on all four sides of every link

Rear Der/Shifter Compatibility Shimano Mountain Shifter Style Trigger Drivetrain Speeds 10 Weight 136 Color Black

4ISO Width (mm) 61ISO Diameter 584 / 650b / 27

Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits Red length-35mm 37 Spindle Interface Type SRAM/TruvativWheels Manufacturing SOLO XD Cog 21t Red. Wheels Mfg. SOLO XD and SOLO SPLINE Single Speed cogs are constructed with high end 7075 aluminum and designed with narrow to wide alternating tooth pattern allowing for superior chain retention. Cogs are optimized for use with Wheels Mfg. SOLO XD XD XDR and SOLO SPLINE Single Speed Conversion kit carrier systems only. Crafted with high end 7075 aluminum for light weight and extreme durability Cogs are