Full CNC power meter spider,  IP67 water proofing, rechargeable battery.

110BCD(5), Shimano 110BCD 4S, and SRAM 107BCD(4) chainring bolt fitting to fit SRAM & QUARQ cranks with an 8 bolt fitting to the spider.

Fits SRAM 8 bolt cranks 2018 - present

101g, accuracy +/- 1.5%, ANT+ and BLE will talk to any Garmin, Wahoo, Zwift, Trainerroad etc

The install will require a Torx T-20 tool, locktite or similar blue