SRAM has partnered with  Quarq the leaders in wireless power meter technology. SRAM’s crankset design was created to add professional grade crank, chain ring stiffness and shifting performance to the SRAM modular wireless power meter crank systems.

Description:

Crankset based bicycle power measurement sensor, via torque transducer and cadence sensor.

Wireless Communication:

ANT+Sport Bike Power Interface, 2.4 GHz digital RF transmission. Compatible with other Bike Power enabled ANT+Sport computers from other manufacturers.

Measurement:

Strain gage based, 20 grids on 10 gages in Quarq proprietary arrangement (Patent Pending).

Electronics:

Ultra-low power electronics package including high-accuracy strain gage measurement and low power consumption.

Bolt Circle Formats:

Current Models

• Standard (130mm BCD)

Battery:

CR2450. User replaceable without tools. Lid is threaded and seals like a contact lens case.

Weight:

SRAM S975 CinQo + Cranks, Chainrings, BB = 884g

Accuracy:

+/- 2%

Calibration:

Calibration values are stored on the CinQo, for seamless interchangeability with receiving devices.