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4iiii Precision 2.0 3D Power Meter - 105 5800 - Black
4iiii Precision 2.0 3D Power Meter - 105 5800 - Black
4iiii Precision 2.0 3D Power Meter - 105 5800 - Black

4iiii Precision 2.0 3D Power Meter - 105 5800 - Black

GBP 246.49

RRP £379.00


Save: £132.51

13 Reviews

Item limited to max quantity of 5000

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In stock


Usually dispatched within 24 hours

Live Chat

Average connection time 25 secs

  • Description

    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:


    • 3D powermeter technology (patent pending) measures tri-axial strain on your crank arm
    • Accurate, consistent data
    • Lightweight, compact design
    • Battery status indicator via 4iiii app
    • Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products
    • User-friendly app and configurable rider compensation scale factor
    • Easy setup and maintenance


    • Weight: 9 grams
    • Data accuracy: +/- 1% error margin
    • Battery life: 100+ riding hours on 2032 coin cell battery
  • Product Details
    Precision 2.0 3D
  • Delivery & Returns

    How long will it take to arrive?

    Please check the stock availability notice on your item when placing your order. This item is: In stock.

    Express Delivery

    If ordered before 11pm, delivered by courier next working day.

    How will I know it has been sent?

    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.

    If I'm not completely happy with my item?

    Please see our returns policy.

Customer Reviews


13 Reviews

5 12
4 1
3 0
2 0
1 0
See all reviews

Top Customer 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.

Best "budget" pwoermeter in town

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.

Great value

Got it at very affordable price. Easy to install, calibrate. Did few outdoor ride and Zwift session, it work just great! Highly recommended.

4iiii precision 2.0 3D 105 power meter

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.

Great product

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.

Good Powermeter

It’s very good cost effectiveness also performance too Recommend 4iiii powermeter

great PM for the money

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.

Great so far!

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.

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