4iiii PRECISION 3+ Left-Side Powermeter - Ride Ready Compatible Left Crank:Shimano - Dura-Ace FC-R9200 170mm

4iiii PRECISION 3+ Left-Side Powermeter - Ride Ready Compatible Left Crank:Shimano - Dura-Ace FC-R9200 170mmThe 4iiii PRECISION 3+ Powermeter is the ultimate combination of accuracy, durability, and lightweight design. Whether you are a Tour de France pro, a Mountain Bike World Champion, Ironman triathlete, a Zwift racer, or a cyclist simply looking to add the structure of data to your training, this crank based power meter provides the consistent data you need to unlock your potential. Engineered to be the best affordable power meter on the market, the

automatic terrain selection

you send us your compatible drive-side crank arm and we install the PRECISION 3+ PRO Powermeter to complete your dual-sided system

it features Apple Find My technology

Replacement PRECISION PRO Dive Side Powermeter cap

or a cyclist simply looking to add the structure of data to your training

Replacement PRECISION Powermeter cap and O-ring

or climbing the virtual mountains of Zwift

Replacement PRECISION 3 & 3+ Powermeter cap and O-ring

you send us your compatible crankset

you send us your compatible crank arm

offering the ultimate combination of dual-sided accuracy

pacing a marathon