SHIMANO Power Meters Hollowtech II Dura Ace Crank With Power Meter

Shimano Dura Ace R9100 Powermeter Features: - Reliable electric system - Own developed strain gauge - Software compensate automatically - Possible to start quickly - Waterproof in all conditions - Direct response - Bluetooth®LE and ANT+ - Wireless firmware update system - Integrated rechargeable battery - Easily change chainrings without affecting power - Enough clearance with our direct mount brake caliper Benefit: - Integrated design - Active temperature compensation - Battery: rechargeable Li-ion battery - 300+ hours of ride time - Quick response and operation without stress - Easy maintenance - Clearance with frame - Accurate data collection Specifications: - Remarks With power meter Chemistry: Li-ion Rated voltage: 3.7 V Rated capacity: 0.66 Ah Rated capacity: 2.442 Wh - Chain line (mm): 43.5 - Chain ring combination: 55-42T (option) 54-42T (option) 53-39T 52-36T 50-34T - Compatible chain: HG-EV 11-speed/HG-X11 - Crank arm length (mm):170 - Gear arms: 4 - P.C.D. (mm): 110 - Rear speeds: 11 - Recommended BB_Pressfit: SM-BB92-41B - Recommended BB_Threaded (normal): BB-R9100 - Q-factor (mm): 146