4iii Shimano Ultegra R8000 Precision 3D

PRECISION powermeter delivers industry leading accuracy and reliability when you need it most. Through our patented 3D strain gauge technology, you have the assurance knowing 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 head units, PRECISION will help you train harder and smarter. A ride-ready PRECISION includes and comes preinstalled on a brand-new Shimano Ultegra R8000 crank arm. 

• PRECISION Powermeter comes pre-installed on a new Shimano crankarm
• Weight: 9g (powermeter pod only)
• Data Accuracy: +/- 1%
• Battery Life: 100 -150 hours (depends on conditions)
• Communication: ANT+ (BPWR Profile) and Bluetooth Smart (Cycling Power Service)