Crankset Shimano Dura-Ace FC-R9100 53/39 175mm

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