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 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.
Packaged into a durable lightweight design and compatible with ANT+ and Bluetooth Smart headunits, PRECISION will help you train harder and smarter.
A Ride Ready PRECISION includes and comes preinstalled on a brand-new Shimano crank arm of your choice. These crank arms will fit bottom brackets using the Hollowtech II interface.
Check your bike frame clearance with the compatibility guide BEFORE placing your order. Any compatibility issues encountered after purchase will be subject to our terms and conditions.
Please be aware that 4iiii warranty claims are honoured in the country of purchase, South Africa cannot support Global warranty claims. Internationally purchased warranty units are required to be returned to the purchased dealer or Canadian head-office directly.
4iiii PRECISION power meters use both the ANT+ PWR and Bluetooth Smart Cycling Power Service standards, which makes them compatible with nearly every headunit, smartphone, or computer you wish to connect to.
Check your recording device documentation for ANT+ PWR or Bluetooth Smart (also called BLE, BTLE, or BT4.0) Cycling Power Service capability.
Choose the Shimano left crank arm you want at checkout, and you’ll receive it with PRECISION installed. The crankset can be installed easily with the use of a Shimano crank installation tool, hex bits and a torque wrench. Install the 4iiii app, pair, update, calibrate and ride.