4iiii Precision 3+ Non-Drive Power Meter - 105 R7100
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4iiii Precision 3+ Non-Drive Power Meter - 105 R7100
4iiii Precision 3+ Non-Drive Power Meter - 105 R7100 Info
The 4iiii Precision 3+ Non-Drive Power Meter - 105 R7100 gives you accurate watt data without the bulk or cost of a full crankset replacement — it installs directly onto your existing 105 R7100 left crank arm, or ships as a replacement arm ready to mount. At just 9 grams added to the crank, the strain gauge pod sits close to the spider and is designed to stay out of the way through all conditions.
The Precision 3+ connects over Bluetooth and ANT+ simultaneously, so it pairs with your head unit and training app at the same time without switching modes. Battery life is rated at 200 hours — enough that you're replacing a coin cell a handful of times a year rather than thinking about it before every ride. Four crank length options cover most riders, from 165mm through 175mm.
4iiii Precision 3+ Non-Drive Power Specs at a Glance
- Compatibility: Shimano 105 R7100 left crank arm
- Connectivity: Bluetooth + ANT+ dual transmission
- Battery life: 200 hours (CR2032)
- Added weight: 9 grams
- Available lengths: 165mm, 170mm, 172.5mm, 175mm
