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.
4iiii makes the lightest power meter on the market. We’re committed to helping you get faster, one gram at a time.
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.
A dual power meter measures the power from each individual leg to calculate your total power output.
Get more data like pedal smoothness and torque effectiveness to analyze and optimize your pedal stroke.
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.
Module Weight | Non-drive Side: 9g (0.3oz) Drive Side: 16g (0.6oz) |
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Power Range | 0 - 4,000W |
Cadence Range | 30 - 150RPM |
Communication Protocols | ANT , Bluetooth |
Operating Temperature | 0 - 50°C (32 - 122°F) |
Storage Temperature | -20 - 50°C (4 - 122°F) |
Battery Type | CR2032 lithium ion coin cell |
Battery Life | 100 hrs |
Waterproof Rating | IPx7, IPx5 |
Length | 37.7mm (1.5in) |
Width | 27.6mm (1.1in) |
Depth | 7.5mm (0.3in) |
A 4iiii PRECISION PRO power meter is available ready to ride on any of the crankset configurations listed below. If your desired crankset isn't listed, we may have other products that are compatible.
Order Price | Shipping Method & Time | Shipping Fee |
---|---|---|
Between $0 And $60 | Standard Shipping (10-15 Business days) | USD $15 |
Between $0 And $60 | Table Rate Shipping (5-10 Business days) | USD $25 |
Tag Size | US | Shoulder | Bust | Length |
---|---|---|---|---|
S | S | 15.35 | 37.01 | 23.23 |
M | M | 15.75 | 38.58 | 23.62 |
L | L | 16.14 | 40.16 | 24.02 |
XL | XL | 16.54 | 41.73 | 24.41 |
2XL | XXL | 16.93 | 43.31 | 24.8 |