4iiii Precision Pro Dual-Side Power Meter Crankset FC-R8000 / FC-R9100 (Ultegra / Dura Ace)

PRECISION PRO
Ride Ready Power Meters

Used to pace attacks up the Alpe D’Huez in the Tour de France and to hammer on the Queen K during the Ironman World Championships, the PRECISION PRO Powermeter delivers industry leading accuracy and reliability when you need it most. Through our patented 3D Strain Gauge technology, you can be assured that the data you depend on will help lead you to your own Yellow Jersey.

How Does It Work?
A set of ride ready 4iiii PRECISION PRO pods are already preinstalled on a brand-new Shimano crankset at our factory. The moment you order, our fulfillment team will get it on its way to you, and you should be able to ride with dual-sided power as soon as it arrives.

In The Box
Once your ride-ready PRECISION PRO powermeter arrives, it just needs to be installed on your bike using the standard Shimano crankset installation process. Connect a headunit or computer, and you can start riding with power!

Warranty & Durability
Ridden through rain storms at Strade Bianche, mud filled cross country mountain bike races, and even tested amidst the salt spray of the ocean on Oracle Team USA’s America’s Cup competitors, you can be assured that your 4iiii Powermeter will be as tough as you are and is backed with an industry leading 3-year warranty. All 4iiii Powermeters are IPX7-rated for water immersion up to one meter and backed with an industry-leading 3-year warranty.

Indoor Training
If the weather or climate make riding outdoors tough, your 4iiii PRECISION PRO powermeter can be used with all popular indoor-training apps, such as Zwift, TrainerRoad, Wahoo SYSTM, Rouvy, and more. Simply use your favourite app’s connection procedure over ANT+ or Bluetooth Smart, put your bike on a trainer, and get riding!