C1 Chainrings



Crank Interface 5 bolt, 110 BCD compact
Connectivity ANT+ and Bluetooth SMART
Tooth Combinations 50/36, 52-36 and 53/39
Firmware Updates Over the air
Added Weight About 150 grams
Battery CR2032
Battery Life 200 hours
Warranty 2 years


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Unlike some other crank based systems this mounts to the existing hardware on your bike.
*you receive the spider Powermeter and both chainrings but no crank with this purchase


Intelligent design from the company you trust to measure power.


Dual-Sided measurement for the price of single sided.

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