Wheels Manufacturing SOLO-SPEED Cog - 23t Fits SOLO-SPLINE SOLO-XD kits Blue MPFN-BL21-0FS349LH-BK }Wolf Tooth Elliptical 110 BCD

}Wolf Tooth Elliptical 110 BCD Chainring - 40t 110 BCD 5-Bolt Drop-Stop 10/11/12-Speed Eagle and Flattop Compatible Black

}Shimano Dura-Ace FC-R9200 Crankset - 175mm 12-Speed 50/34t Hollowtech II Spindle Interface Black

0 color black length 306mm package 20/count

}Park Tool THT-1 Sliding T-Handle Star-Shaped Torx Wrench Set

Wheels Manufacturing SOLO-SPEED Cog - 23t Fits SOLO-SPLINE SOLO-XD kits Blue MPFN-BL21-0FS349LH-BK }Wolf Tooth Elliptical 110 BCDWheels Manufacturing SOLO XD Cog 23t Blue. 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