4iiii Innovations Precision 3+ Power Meter Dura Ace 9200 165mm Model-Basis Measure your upper seatpost stanchion

Measure your upper seatpost stanchion diameter to determine the correct size to use

Spring preload collar with detents

Weight: 38t • 66g  |  40t • 74g  |  42t • 81g  |  44t • 90g

model Hellbender 70 spindle interface 30mm shell T47 internal shell ID 47mm width 85

4iiii Innovations Precision 3+ Power Meter Dura Ace 9200 165mm Model-Basis Measure your upper seatpost stanchionFeatures support for Apple Find My Up to 800 hours of battery life, an automatic terrain selector, + 1% accuracy, waterproof, light weight (9g), low profile, indicator light, ANT+ Bluetooth Backed by an industry leading 3 year warranty While you are riding, Precision 3+ Power Meter will transmit watts, cadence, and calories to your head unit of choice While the power meter is not in use, Find My is enabled and allows you to see its location on a map