Shimano FC-09 54t 11-Speed Asymmetric 110BCD Black Chainring MFPN=21736 }Stans NoTubes Brass Valve Stems

}Stans NoTubes Brass Valve Stems - 44mm 25-pack

Each cog is designed with a unique tooth profile for exceptional chain retention

Core Yes Misc Stealth M 55-59cm Size M e-Bike approved No

Front Derailleur Clamp 28

29 night flash

Shimano FC-09 54t 11-Speed Asymmetric 110BCD Black Chainring MFPN=21736 }Stans NoTubes Brass Valve StemsSystem supremacy Shimanos Dura Ace 11 speed asymmetric chainrings provide clean chain engagement for reliable riding. The 110 BCD bolt pattern is compatible only with cranks with a matching 110 BCD. System engineering at its peak. Redesigned gear teeth profile to fit wider gear pitch Optimum power transfer Best balance for lighter weight and efficiency 4 arm construction Shorter length of rear center with O. L. D. 135mm Hollowtech II