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Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter.
PRECISION Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.
NOTE: check your frame clearance before ordering by downloading and printing the compatibility guide:
Please check the stock availability notice on your item when placing your order. This item is: In stock.
You will receive an email to confirm when your item has been sent.
You can also check the status of your order and individual items by accessing My Account details and following the prompts.
Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.
It may be advisable to check with your neighbours to see if a parcel has been left with them, check any outhouses you might have where it may be left if it cannot fit through your letterbox and contact your local sorting office to see if the item has been returned to the depot as undelivered and awaiting collection.
Please see our returns policy.
13 ReviewsSee all reviews
Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.
Bought one from PBK last year. No problems at all. It's reliable, stable, light, sealed properly and delivers consistent results. Battery life is also very good. I had previous experience with Stages gen. 2 and in my opinion 4iiii is superior to Stages. For the price there's no better powermeter for Shimano users. Highly recommended.
This is my second 4iiii power meter. I was in on the original kickstarter offering, and mailed them my crank arm for installation. Works great, no issues. Seems to have better battery life than my Stages. Tested the first one against my Power Tap hub, and they numbers were very close. Highly recommended.
Got it at very affordable price. Easy to install, calibrate. Did few outdoor ride and Zwift session, it work just great! Highly recommended.
Easy to install, calibrate and pair to (lezyne) head unit and Zwift via bluetooth. Works as expected. No power drops. 6 days tracked shipping to Canada. Paid tax and handling.
Everything works well, Data are precise, no drops out, Extremly fast shiping to Slovakia (2days) 100% recomended
Easy to fit easy to setup. Works very well. Data collection seems to be nice and stable to both Strava and Garmin. Great product and great service would recommend both probikekit and 4iiii power meter crank to anyone
I have no problems with 4iiii after 2 months of use. Highly recommended.
It’s very good cost effectiveness also performance too Recommend 4iiii powermeter
got on offer a few months back. great PM and very easily swappable if you run Shimano cranksets on all bikes as i do. never misses a "watt" and is comparable in power output to my Vector S. we'll see what its like in the next few months with lower temps, etc but all is good so far. had a question for support re calibration and they reverted very quickly.
I've only installed and used this once so far, but it's already better that Stages. With Stages I had drop outs randomly 2-3 times an hour on the trainer, which really disrupts a training session. First ride with 4iiii was flawless. Easy to install on my Ultegra crank to save some money.