4iiii Precision 2.0 Power Meter - Ultegra R8000

USD 349.99



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Spend $150 to get $20 off. Spend $240 to get $35 off.
Spend $150 to get $20 off. Spend $240 to get $35 off.


Click here for all qualifying products

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Average connection time 25 secs

Average connection time 25 secs

Training with power is one sure-fire way to ride faster and achieve a podium topping performance. Although power meters previously, remained the preserve of the elite athletes, now thanks to the new 4iiii Precision 2.0 3D, training with power is more accessible than ever before. By measuring your power output to +/- 1% accuracy, via the tri-axel strain gauge, the 4iiii Precision 2.0 3D allows you to train with more consistency and ultimately, achieve much better results. Not on;ly is it one of the most accurate power meters on the market, it's also one of the lightest, weighing just 9 grams.

With an easily replaceable 2032 coin-cell battery, this power meter offers 100+ hours of riding time and, like a rechargeable battery, can easily be checked for life using the dedicated 4iiii companion app. Thankfully, the 4iiii Precision 2.0 3D is compatible with most ANT+ and Bluetooth capable devices. So, whatever computer, training device or apps you use, you won't need to worry about integration between your new power meter and your current set up.

  • Lightweight, 3D technology equipped power meter
  • Power data accurate to +/- 1%
  • Compatible with ANT+, Bluetooth head units, smart phones and other 4iiii products
  • User-friendly app
  • Easy set-up and maintenance.
  • 100+ riding hours on 2032 coin cell battery
  • Battery life indicator via 4iiii companion app.
  • Compatible with all Shimano road crank sets.

To ensure your frame has sufficient clearance for this power meter, please check this guide

Precision 2.0

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 Available If ordered before 8pm, delivered by courier next working day. Available on orders placed before 8pm (2pm weekends and Bank Holidays) for delivery next business day. Applies to most delivery addresses within mainland UK.

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 your account details and following the prompts.

Please allow 10 working days from the shipping date of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbors to see if your delivery has been left with them, check any places it could be left such as: garage, porch, or behind garbage cans if it was too big to fit through your mailbox. Contact your local post 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

Overall Rating : 4.64 / 5 (14 Reviews)
  • 12 5 star reviews
  • 1 4 star reviews
  • 0 3 star reviews
  • 0 2 star reviews
  • 1 1 star reviews
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.


Inconsistent power readings. Essentially an expensive cadence sensor. Don’t buy.

All it said it would be

I have recently purchased the 4iiii left side ultegra power meter. After reading the positive reviews, I went ahead and purchased the power meter which includes the left crank arm. After fitting the arm by following the instructions and a quick you tube video, I was up and running. the meter clicked in as specified by the instructions. So far, no problems whatsoever. Extremely pleased and works well with my Wahoo Roam. I currently ride over 300 kms per week so the power meter gets a good workout.

High-Clearance Required

Great value, and from what I hear power measurement is more accurate than similarly priced single-leg meters. Installation couldn't be simpler, and setup/integration is dead-simple. Just check your bike to make sure you have adequate chainstay clearance for this power meter, the module in the crankarm sticks out a bit more than others. 4iiii has a print-out guide that you can use (along with a AAA battery) to ensure you have adequate room for this power meter. Not being able to use it on my Canyon road bike was disappointing (should have researched the matter first), but the meter fit fine on my cyclocross bike which had plenty of room for it.

Power meter 4iiii ultegra

Awesome piece of kit, love the feedback for training

Accurate data, improved training

Super quick delivery and exactly as described. Took it to my LBS to fit (probably could have done it myself - instructions made it sound super easy) and have enjoyed the extra info the power meter feeds to my Wahoo Bolt. Cadence and power info is helping lift my training and I am already noticing more consistent effort during rides, particularly on hills. Really happy with this purchase and will buy again from Probikekit.

It just works

Had a crank based power meter that stopped working. This is nice and simple and seems to give consistent power figures. Defo recommend and don’t listen to the dual sided power argument Sky used single sided power for years and won everything. Great value particularly with a voucher code. Or just buy the 105 version

It just works.

I had an old pedal based power meter - it was always dropping the signal, chewed through batteries, was a pain to clip in and out of, and weighed a metaphoric ton. Thrilled with the 4iiii meter - a snap to install and calibrate, was able to re-install my old (but brand new) Ultegra pedals. Not only does the power meter "just work", the sure and consistent feel of my Ultegra pedals removes that old aggravation. Price, ordering, and delivery were all very easy. Added benefit: Love supporting a small Canadian company that is producing such a great product.

Efficient and well priced

This is the second one of these I have owned ( I sold the last one with my last bike). For a single sided unit it is very good and also for the money as they are well priced compared to others. Its within 2 watts when I compare it to my smart trainer etc and syncs seamlessly to my head unit. Overall I'm very happy with it and would recommend it to anyone who is looking for a good entry into power meter based riding and training.

Power meter

Just back from the first ride. Sooo satisfied. Easy installation, calibration and pairing also with my Wahoo ELMNT bolt. Working like a charm,. The only thing is Strava stupid calculation which never the less using their algorithm and ignoring data from power meter ... But who cares for Strava politics. Strongly recommend, the best option for pristine PM on the market!

Power Stats

Quick reliable delivery, easy to fit and working well. Love the stats!

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