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, our precision powermeter delivers 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 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.

IN THE BOX

Once your ride-ready PRECISION Powermeter arrives, it just needs to be installed on your bike using the standard Shimano crank installation process.

Connect a head unit or computer, and you can start riding with power.

WARRANTY

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.

All 4iiii power meters are IPX7-rated for water immersion up to one meter and backed with an industry-leading 3-year warranty.

SPECIFICATIONS