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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 Powermeter delivers 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 lead you to your own Yellow Jersey. Packaged into a durable lightweight design and compatible with ANT+ and Bluetooth Smart head units, PRECISION will help you train harder and smarter.
How Does It Work?
A ride-ready PRECISION pod is already preinstalled on a brand-new Shimano crank arm at our factory. The moment you order, our fulfilment team will get it on its way to you, and you should be able to ride with power as soon as it arrives.
Important: You need to use the frame clearance guides to ensure there is space between your crank and frame for the PRECISION pods.
Once your ride-ready PRECISION Powermeter arrives, it just needs to be installed on your bike using the standard Shimano crank installation process. Connect a head unit or computer, and you can start riding with power!
Tip: If you’re unsure, a bike shop would be happy to aid you in the installation process.
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 power meter will be as tough as your are and is backed with an industry-leading 3-year warranty. All 4iii power meters are IPX7-rated for water immersion up to one meter and backed with an industry-leading 3-year warranty.
Light Weight
At only 9 grams the PRECISION 3+ Powermeter weighs about the same as a sip from your water bottle. Our goal is to help you get faster, not to slow you down.
Battery Life
Our impressive long-lasting battery life means you won’t have to worry about frequent battery changes.
Accuracy in 3D
Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke.
3 Year Warranty
A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii power meters are backed by an industry-leading 3-year warranty.
Indoor TrainingIf the weather or climate makes riding outdoors tough, your 4iiii power meter 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!
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