Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits BLK 140x80mm 4 ISO 406 Bead TBLS

4 ISO 406 Bead TBLS - Fold Tread/Sidewall Color Bk/Blk PSI 85 Weight (Grams) 744 TPI 60 Durometer Features TCS Reflective Sidewall No

600 Lumen / 120 Lux

5` and 29er wheels

Tire lever

Available for gear and brake housing

Wheels Manufacturing SOLO-SPEED Cog - 21t Fits SOLO-SPLINE SOLO-XD kits BLK 140x80mm 4 ISO 406 Bead TBLSWheels 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 optimized for use with Wheels Mfg. SOLO XD XD XDR