Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits Purple Model-Radar 15 Bearing Type Cartridge Thickness

15 Bearing Type Cartridge Thickness 7 Cartridge Bearing Angle 45x45

e*thirteen Press Fit Bottom BracketsBearings feature high performance seals and a custom grease specification deliver supreme durability and smooth spinning performance

} Polyurethane base with a velvet cover and backside/center adhesive strip for easy mounting

8mm rise +/-6 deg length 110mm color black

Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits Purple Model-Radar 15 Bearing Type Cartridge ThicknessCogs are designed with narrow wide alternating tooth pattern allowing for superior chain retention Cogs are optimized for use with Solo XD Carrier system only Will not work with 13spd Campagnolo chains or 12spd Shimano HG+ chains TECH SPECS model SOLO XD description SOLO XD replacement cog teeth 21 chain 9 12sp color purple