The all-new SHIMANO ULTEGRA R8000 series crank features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames. It is available with 53-39, 52-36, 50-34, and 46-36T chainrings and 165, 170, 172.5, and 175mm crank arm lengths.
Lightweight crankarm design optimized for power-transfer efficiency
Minimal weight without sacrificing stiffness
HOLLOWTECH II
Rider-tuned gear performance through various gear combinations
Redesigned FC for greater frame compatibility
Wider gear pitch increases clearance between chain and leading teeth, providing compatibility with frames of O.L.D. 135 mm and 410 mm chainstay length
PRODUCT SPECIFICATIONS
MODEL NO FC-R8000
SERIES SHIMANO ULTEGRA R8000 Series
Color Series color
Average weight 690 g (53-39T), 681 g (52-36T), 674 g (50-34T), 668 g (46-36T)
HOLLOWTECH II Technology ✔
Threaded BB shell width_70mm ✔
Chain line (mm) 43.5
Chain ring combination 50-34T, 52-36T, 53-39T, 46-36T
Compatible BB type_Outboard ✔
Compatible chain HG-EV 11-speed, HG-X11
Crank fixing bolt included ✔
Crank arm length (mm)_165.0 ✔
Crank arm length (mm)_170.0 ✔
Crank arm length (mm)_172.5 ✔
Crank arm length (mm)_175.0 ✔
Gear arms 4
HOLLOWGLIDE X, - (46-36T)
HOLLOWTECH Technology ✔
Optional chain guard_Without chain / bash guard ✔
P.C.D. (mm) 110
Rear speeds 11
Recommended BB_Pressfit SM-BBR60-PB
Recommended BB_Threaded (normal) SM-BBR60
Threaded BB shell width_68mm ✔
Q-factor (mm) 146