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PRECISION PRO

Factory Install Power Meters
$499.99USD
Your Crank, our Power Meter

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.

The PRECISION PRO will allow you to view advanced metrics like left/right balance, pedal smoothness, torque effectiveness, and provide you with the most accurate power numbers during training and racing. Ridden by the top cyclists and triathletes in the world, the PRECISION PRO is the ultimate training tool to help you reach your goals.

The PRECISION PRO Factory Install is installed on a crankset you supply to us. Want a brand-new Shimano crankset on its way today? Check out our PRECISION PRO Ride Ready.

Crankset:
Crank Type Reset
Factory Install (Aluminum)
Factory Install (Carbon)
Details
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Installation
How Does It Work?
Through our custom install process, PRECISION PRO can be installed on a wide variety of cranksets. We’ll work with you to determine the best fit for your bike frame. Once you place your order, we get in touch with the shipping logistics. You’ll send us your crankset, and our skilled technicians will install a PRECISION PRO powermeter on it and ship it back to you.
Important: You need to use the frame clearance pages below to ensure there is space between your crank and frame for the PRECISION PRO pods.
In The Box
After a factory installation, your crankset will be returned to you with left and right PRECISION PRO powermeter pods attached and ready to ride. Reinstall the crankset back onto your bike, connect a headunit or computer, and you can get riding with dual-side power!
Tip: If you're unsure, a bike shop would be happy to aid you in removing your crank or crankset and reinstalling once your 4iiii Powermeter is installed.
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!
Specifications
Module Weight
Non-drive Side: 9g (0.3oz), Drive Side: 16g (0.6oz), Total: 25g (0.9oz)
Power Range
0-4000W
Cadence Range
30-150RPM
Communication Protocols
ANT+, Bluetooth
Operating Temperature
0 to 50°C (32-122°F)
Storage Temperature
-20 to 50°C (4-122°F)
Battery Type
CR2032 lithium ion coin cell
Battery Life
100+ hours
Waterproof Rating
IPX7, IPX5
Length
37.7mm (1.5in)
Width
27.6mm (1.1in)
Depth
7.5mm (0.3in)
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