Reviews over the
4iiii Ultegra R8000 Precision 3
Photos from customers
5 / 5
Great product and delivered well and fine by Mantel.
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
5 / 5
Focus on power
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
5 / 5
Fast knd accurate watt measurement
Quick and easy to mount, visually matching ultegra set
Pros & Cons
4 / 5
Nice and accurate power meter.
Ordered the 4iiii on a Friday afternoon. The package was supposed to be delivered on Saturday. On Saturday I received a message from PostNL that it would be delivered on Monday. Very unfortunate because I needed it on Sunday.... The power meter is easy to mount and connect to my Wahoo. Very satisfied with this product.
Pros & Cons
5 / 5
Does the job
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
5 / 5
Excellent product, high quality, reasonable price for potentiometers.
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
5 / 5
100% recommended
Everything was great. In saw fast and as expected. Product easy to install and very correct measurement.
5 / 5
Everything perfect, and fast
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
5 / 5
Magnificent.
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
5 / 5
Perfect
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
5 / 5
Top product
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
4 / 5
Good potentiometer for beginners
Good potentiometer. Easy to install and set up with wahoo or garmin.
Pros & Cons
5 / 5
Price/performance winner for one-sided measurement.
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
5 / 5
Super satisfied with this purchase
Quickly delivered, immediately ready for use. Cycling with a power meter is even more fun!
Pros & Cons
5 / 5
Great power meter at a good price
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
2 / 5
Until they fix their beta firmware get a stages pm
Great product overall, better than the original precision, very slim will fit a lot of bikes, great battery life, but there is one big downside currently. If you stop pedaling through a corner for just a few seconds it will go to sleep, and arround 5 seconds of powerdata after each corner will be lost due to the meter taking this long to wake up again. This issue has been known for months and they have not been able to fix this behavior. In my opinion not a great look for 4iiii to release a product in this state… Checking the few paid reviews out there no one even mentions this major flaw.
Pros & Cons
4 / 5
Nice product at a relatively reasonable price.
I have been using the power meter for a few rides now. Only thing I notice now is that it seems that sometimes it doesn't register for a while. I have yet to discover that further. I know several people who have this meter, they are generally very satisfied.
Pros & Cons
5 / 5
top! super product
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