4iiii Gen 3 Ultegra Left-Side PRECISION 3 Powermeter

Shipping Daily From West Virginia!

These will work with any shimano road crankset made in the last ten years. Yes it will work with your 105, yes it will work with Dura Ace too.

PRECISION 3

Whether  you are fighting for a Kona slot, spending countless hours on the  indoor trainer or striving for a personal best; one thing we know,  success takes time. With up to 800 hours of battery life, +/-1% accuracy  and weighing in at only 9 grams, the PRECISION 3 Powermeter will be  your trusted training tool for years to come.

ACCURACY IN 3D
Not  everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is  the only crank-based power meter to use 3 strain gauges to measure all  forces in your pedal stroke.
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ULTRA LOW PROFILE
With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before.

INDICATOR LIGHT
At  a glance, you can now see when your power meter has turned on,  performed a successful Zero-offset, or has a low battery. Although,  don’t expect to see that low battery indicator for a while!

WATERPROOF
Based  in the foothills of the Canadian Rockies, we were tired of training  tools not designed to work in our tough environment. With an IPX7  waterproof rating you can be assured that your power meter can handle  the toughest conditions.

ANT+ & BLUETOOTH
Get  the same numbers training inside and outside. The PRECISION 3  Powermeter is both ANT+ and BLE compatible so you can use it on your  preferred head unit and favorite indoor training app.

3 YEAR WARRANTY
A  lot can happen in 3 years. You probably won’t need to use it, but it’s  reassuring to know that all 4iiii Powermeters are backed by an industry  leading 3-year warranty