DURA-ACE - HOLLOWTECH II - Road Crankset - 2x11-speed
The choice of the world´s best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weigh while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options.
FEATURE
•Best balance for lighter weight (-7g) and efficiency
•Maintains high rigidity and reduces weight
•Shorter length of rear center with O.L.D.135mm
BENEFIT
•Optimum power transfer
•Iconic design
•Adapted for race specific disc brake system
•Rider tuned gearing options
MODEL NO - FC-R9100
SERIES - DURA-ACE R9100 Series
Average weight - 650 g (55-42T), 642 g (54-42T), 626 g (53-39T), 624 g (52-36T), 614 g (50-34T)
HOLLOWTECH II Technology - ✔
Chain line (mm) - 43.5
Chain ring combination - 55-42T, 54-42T, 53-39T, 52-36T, 50-34T
Compatible BB type - Outboard
Compatible chain - HG-EV 11-speed, HG-X11
Crank Arm Length - 165 mm, 167.5 mm, 170 mm, 172.5 mm, 175 mm, 177.5 mm, 180 mm
Gear arms - 4
HOLLOWGLIDE - ✔
HOLLOWTECH Technology - ✔
P.C.D. (mm) - 110
Rear speeds - 11
Recommended BB_Pressfit - SM-BB92-41B
Recommended BB_Threaded (normal) - BB-R9100
Technology - HOLLOWTECH BB, HOLLOWTECH II
Threaded BB Shell Width - 68 mm, 70 mm
Includes Crank Arm Fixing Bolt - Yes
Q-factor (mm) - 146
