Pay in 4 interest-free payments of $41.88 Learn more
Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
BONUS: FREE TRAINING WITH JOIN CYCLING Every 4iiii power meter purchase includes 8 weeks of free premium training on the JOIN Cycling App
you send us your compatible crankset
you send us your compatible drive-side crank arm and we install the PRECISION 3+ PRO Powermeter to complete your dual-sided system
or a cyclist looking to analyze left/right balance to optimize your pedal stroke
and an industry-leading 800-hour battery life
4iiii PRECISION 3+ Left-Side Powermeter - Ride Ready Compatible Left Crank:Shimano - Ultegra FC-R8100 172.5mm BONUS: FREE TRAINING WITH JOINThe 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
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