Wheels Manufacturing SOLO-SPEED Cog - 18t Fits SOLO-SPLINE SOLO-XD kits Red Model=Solo-XD XD/XDR Single Speed Conversion Kit but it is pretty close

but it is pretty close and quite an amazing boot

Model Collar Diameter 28

Designed for Wolf Tooth rear axles with a female threaded head-end

Long-lasting tire with a rounded profile and low rolling resistance

Length 168 Color Black Rear Axle Type 12mm Thru-axle Thread Pitch 1 Thread Length (mm) 20 Axle Diameter (mm) 12 Overall Length (mm) 168

Wheels Manufacturing SOLO-SPEED Cog - 18t Fits SOLO-SPLINE SOLO-XD kits Red Model=Solo-XD XD/XDR Single Speed Conversion Kit but it is pretty closeCogs are designed with narrow wide alternating tooth pattern allowing for superior chain retention Cogs are optimized for use with Solo XD Carrier system only TECH SPECS teeth 18t color red