DURA-ACE - Dual Sided PowermeterThe 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.
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 battery300+ hours of ride timeQuick response and operation without stress- Possible to start quickly
- Simple zero reset with switch on transmitter
- Direct response
- Both left and right side connected with cable
- Magnet based cadence
- Bluetooth®LE and ANT+
- Wireless firmware update system
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