Quarq

Every innovation in Quarq’s next-generation DZero platform is channeled into the Shimano®-compatible DFour power meter. Designed for Shimano®’s lightweight, ergonomic Dura-Ace® groupset, DFour is Quarq’s most advanced Shimano®-compatible power meter ever. DFour embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.

Make the most of your Shimano® Dura-Ace® R9100 groupset by upgrading to Quarq’s DFour⁹¹ power meter, which embodies all the advances of the next-generation DZero platform.

DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer and the new Qalvin BLE app.

Quarq DZero for Specialized replaces the factory spider on Specialized’s S-Works carbon crankset. It is compatible with cranksets from 2013-Current.

Automated suspension tuning for mountain bikes. Learn more about ShockWiz

Buy the Direct Mount version for inverted forks such as the RockShox RS-1.

The SRAM RED AXS™ power meter breaks with tradition — and breaks through to new levels of performance. The power meters are designed with Quarq’s premier DZero™ power measurement technology fully integrated into the crankset. Welcome to the pinnacle of the power meter.

These power meter spiders are to upgrade your current non-power AXS™ crankset.

Use the SRAM XX1 Eagle Power Meter Spider to upgrade a legacy SRAM XX1 Power Meter to the DZero platform.

The Eagle Power Meter Spider uses the 8-Bolt crank to spider interface. It is compatible with power meter crank arms only.