4iiii Precision 3+ Pro Dual Sided Power Meter - Ultegra R8100
-
RA price match promise
-
Pay later with
,
and
Pickup available at RA Cycles - Brooklyn
Usually ready in 24 hours
Questions about this product?
Questions about this product?
4iiii Precision 3+ Pro Dual Sided Power Meter - Ultegra R8100
4iiii Precision 3+ Pro Dual Sided Power Meter - Ultegra R8100 Info
The 4iiii Precision 3+ Pro Dual Sided Power Meter - Ultegra R8100 measures power from both sides of your pedal stroke, giving you the left/right balance data that a single-sided unit simply cannot provide. Built around the proven Shimano Ultegra R8100 crankset, it pairs a factory-level crank with 4iiii's strain gauge technology — so you're not compromising on drivetrain quality to gain training data.
Dual-sided measurement means every watt is accounted for, which matters when you're building a training block, chasing a functional threshold power test, or trying to identify and correct leg imbalances over time. The Precision 3+ Pro transmits via ANT+ and Bluetooth simultaneously, so it works with your head unit and your training app at the same time without any pairing compromises.
4iiii Precision 3+ Pro Dual Specs at a Glance
- Crank compatibility: Shimano Ultegra R8100
- Measurement: Dual-sided (left and right independent power)
- Transmission: ANT+ and Bluetooth simultaneous broadcast
- Crank arm lengths: 165mm, 170mm, 172.5mm, 175mm
- Chainring options: 50x34 (compact) or 52x36 (mid-compact)
