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. The addition of a reliable, accurate, waterproof power meter makes this crank an even more valuable tool to serious cyclists. With a rechargeable Li-ion battery, left/right balance, and Bluetooth LE and ANT+ connectivity, the SHIMANO DURA-ACE Power Meter sets a new standard in cycling data collection.
FEATURES
Integrated design
Reliable electric system
Waterproof in all conditions
Easy maintenance
Integrated rechargeable battery
Battery charged for less trouble
Easily change chainrings without affecting power
Clearance with frame
Enough clearance with our direct mount brake caliper
Accurate data collection
±2% (300W, 90 rpm) accuracy of strain gage measured power in full-range
Stable power measurement system at the various stepping positions
Active temperature compensation
Own developed strain gauge
Software compensate automatically
Battery: rechargeable Li-ion battery
300+ hours of ride time
Quick response and operation without stress
Possible to start quickly
Simple zero reset with switch on transmitter
Package including:
- 1pcs SHIMANO R9100 65/170/172.5/175MM Crankset And 50-34T/52-36T/53-39T Chainring （Need select）
Note:100% authentic, no original box
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