Reviews over the

4iiii Ultegra R8000 Precision 3

Easy to install with a 5 mm Allen wrench. Can easily be done by yourself. Great powermeter and works flawlessly right out of the box. No malfunctions or errormessages.

Pros & Cons

This is a top of the line product. Easy to apply to the bike. Easy to pair with bike computer and 2 sensors in 1. Besides power also a cadence meter. That's one less sensor on the bike. Tested it during the AGR on all the climbs and it does give a new dimension to long distance cycling.

Pros & Cons

Quick and easy to mount, visually matching ultegra set

Pros & Cons

Very user-friendly powermeter that "does the job." I had my local bike shop mount it for a while but I think you can easily do it yourself. Only "downside" is that this powermeter only measures the power of your left leg, but you know that in advance.

Pros & Cons

3 years ago I bought my first 4iii in mantel, the 105. Today I bought the ultegra in the same way, everything perfect. The first one is still working as the first day.

Pros & Cons

Everything was great. In saw fast and as expected. Product easy to install and very correct measurement.

The potentiometer goes perfect is very easy to set up and connects with the iPhone phone and my Garmin great,fast shipping and the best price I found.

Pros & Cons

The sensor occupies very little and does not bother the frame (treck emonda). As soon as you turn the crank the garmin finds it and gives you the option to calibrate it (it takes no time at all).

Pros & Cons

Purchased to equip my second bike with a power meter, too bad the Ulteagra R8100 crank version is not available. Easy to install, I believe compatible with almost every frame out there, and good value for money. Also, comparing it with Garmin Rally pedals and interactive roller Élite Direto XR, I noticed that it is very accurate. The battery should last a long time and is easy to replace

Pros & Cons

Ordered Friday at 5pm and delivered Saturday morning in Belgium, super service! Connected directly to my Garmin, calibrate and you are ready to ride. Power meter does what it needs to do, if you want to measure something more accurate you need to spend more than twice as much for a left-right power meter.

Pros & Cons

Super powermeter for a fair price. After the previous model had water damage with me, I hope that the successor keeps what it promises. So far very satisfied.

Pros & Cons

Quickly delivered, immediately ready for use. Cycling with a power meter is even more fun!

Pros & Cons

The installation went smoothly and was done after 5 minutes. The connection to the app was absolutely problem-free. Everything fits perfectly on my Canyon Ultimate CF SL. The minimal colour difference between this product (RC8000) and the current Shimano Ultegra RC8100 is noticeable, but can be neglected.

Pros & Cons

to replace my old 4iii sensor, old generation which was short-circuited. The only weak point is when you switch it on, after the green/blue/red flashing, the red flashing that indicates the battery level is much too fast to count the number. Fortunately, you can see much better on the application

Pros & Cons