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Application: Road, Cyclocross, Gravel
Type: spider with power measurement
Compatibility: 1x, 2x
Chainring Mount: 107 mm pitch circle, 4-arm asymmetrical
Series: SRAM Red AXS
Tolerance: +/- 1.5 %
Point of Measurement: spider
Power Source: CR2032 lithium battery
Battery Life: approx. 200 hours
Data Collected: power (dual-sided), cadence, torque, pedal stroke uniformity
Data Transfer: ANT+, Bluetooth
- SRAM Red eTap AXS 1x cranks w/ 36 tooth to 46 tooth chainring
- SRAM Force eTap AXS 1x cranks w/ 36 tooth to 46 tooth chainring
- SRAM Force eTap AXS 2x cranks with 33-46 & 35-48 tooth chainrings
- QUARQ DUB Carbon cranks
- Road chainring for Force 12-speed
- X-Sync Road 12-speed chainring
- AXS technology for easy monitoring and firmware upgrades
- performance measurement is not affected by temperature fluctuations
- tool-free battery change
QUARQ Operating Principle
The crankset forms the heart of your bike. Their only task is to convert the force of both legs into forward motion - the perfect place to measure performance.
Power meters calculate power by measuring torque (pedal force) and angular velocity (cadence). Power = torque x cadence. When you pedal, all parts of the bicycle drivetrain shift (bend) slightly under the load. Power meters are designed using FE analysis so that these displacements take place in a very controlled manner and at specific locations in relation to the applied load. Strain gauges are used to measure this displacement and thus calculate the applied torque. Reed switches are used to calculate the cadence.
DZero is QUARQ's next generation power meter, named after the DZero Experiment, one of the most accurate and innovative scientific projects to discover subatomic particles. With a revised measurement loop, an optimised strain gauge design, increased accuracy and modern software, DZero represents the " state of the art" for power meter technology. You can choose between Bluetooth LE and ANT+ technology for data transfer.
AXS is SRAM's electronic integration platform that combines electronic bicycle components and software. The SRAM AXS app allows you to view battery status, change component behaviour, adjust controls, receive maintenance reminders and update firmware.
Manufacturer Part Number:
- 1 x QUARQ AXS power meter spider