4iiii Left Side Precision Powermeter 3

By 4iiii


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.


  • 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
  • 3d Power Measurement
  • Industry Leading Accuracy
  • Dual-Channel Ant+ & Bluetooth Smart