4iiii Precision 2.0 Power Meter - Ultegra R8000

These days, the virtue of utilising a power meter for training is almost beyond debatable. With the accuracy, low weight, and low price offered by the 4iiii Precision 2.0 power meter it’s now a no brainer. If you are looking for a power meter that offers tried and tested pro-worthy technology, at an affordable price, then this is the device for you.

Using a tri-axel strain gauge, the Precision 2.0 measures power output as you put force through the left-side crank arm, to an industry leading accuracy of +/- 1%. What’s remarkable with this device is that its presence adds only 9 grams to the standard weight of a crank arm, satisfying even the most gram conscious bike riders’ need for power.

Arriving pre-installed on the inside of a brand-new Ultegra 8000 crank arm, the Precision 2.0 is barely noticeable. In fact, with a ride-time battery life of over 100 hours, it may be quite some time before you ever do have to pay it any attention. When it does come time to replace the battery, it’s simply a case of replacing the 2032 coin-cell battery, no tools required. Helpfully you can check the battery status via the 4iiii companion app.

As you would expect from a modern piece of cycling tech, it is compatible with most ANT+ and Bluetooth capable devices, meaning you’ll be able to sync it to your chosen bike computer, indoor trainer, and/or laptop/PC, and use it for training and racing indoors and outdoors.

Whether you’re looking to quantify your training or pace yourself up Alpe d’Huez, then the 4iiii Precision 2.0 3D would be a great addition to your bike.

Product Features

• Lightweight, weighing only 9 grams
• 3D technology equipped power meter
• Power data accurate to +/- 1%
• Compatible with ANT+, Bluetooth head units, smart phones, PCs, indoor trainers
• 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