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Crank arm length: 165, 167.5, 170, 172.5, 175, 177.5, 180mm
Rider tuned gearing options
4-arm construction crankset
New designed crank arm
Iconic design
Redesign the gear teeth profile to fit wider gear pitch
HOLLOWGLIDE
Best balance for lighter weight (-7g) and efficiency
50-34T/53-39T/54-42T/55-42T/52-36T
Shorter length of rear center with O.L.D.135mm
Gear combination: 50-34T, 52-36T, 53-39T, 54-42T, 55-42T
Optimum power transfer
Adapted for race specific disc brake system
Maintains high rigidity and reduces weight
OUTER RING MATERIALAluminum/CFRPAVERAGE WEIGHT609g,-,621gTHREADED BB SHELL WIDTH68,70CRANK ARM FINISHAnodizedCOMPATIBLE BB TYPEOutboardGEAR ARMS4COMPATIBLE CHAINHG-EV|11|Speed/|HG-X11SERIESDura-AceINNER RING MATERIALAluminumGENERATIONR9100CRANK ARM LENGTH165,167.5,170,172.5,175,177.5,180CHAIN RING COMBINATION50-34,52-36,53-39CRANK ARM MATERIALAluminum