Legacy power meters need a magnet to measure cadence. Quarq’s rare-earth magnets deliver a powerful, everlasting magnetic field to ensure optimum performance.

Specifications
Contains 3 magnet types: adhesive putty, cable guide and BB/Ring Mount
DZero platform power meters do not use a magnet
If your power meter uses a CR2032 battery you can eliminate the magnet with a new firmware.

Mfr Claimed Weight
TBC