Shimano FC-09 52t 11-Speed Asymmetric 110BCD Black ChainringSystem 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
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product description
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System 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
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Shimano FC-09 52t 11-Speed Asymmetric 110BCD Black Chainring