4iiii Precision Power Meter Shimano Dura Ace R9100 Left Crank Arm 175mm size-190mm Specialized Allez DSW SL Comp

Specialized Allez DSW SL Comp Womens Road Bike - 2016

Incredibly robust steel body

Cannondale CAAD12 Road Bike - 2019

A magnetic socket drive accepts standard 1

4iiii Precision Power Meter Shimano Dura Ace R9100 Left Crank Arm 175mm size-190mm Specialized Allez DSW SL CompUsed to pace attacks up the Alpe DHuez 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