Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits Purple CheckoutTitle=Spank Spoon 350 Stem - 45mm The unique water repellent non-fling

The unique water repellent non-fling formula penetrates deep into the chain link to create a durable protective coating which guards against corrosion and metal to metal wear

Single sizing for perfect fit

37 BB/Frame Interface English BB Shell Width (mm) 68 BB Shell Width (mm) 73 BB Shell Width (mm) 100 Weight 102 Spindle Interface Type SRAM DUB Defined Color Red

Uses updated Fixer9 handlebar mount for fast attachment/removal compatible with E-Bikes

Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits Purple CheckoutTitle=Spank Spoon 350 Stem - 45mm The unique water repellent non-flingCogs 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