Power meter
4iiii Precision 3+ Pro
The dual-sided version of 4iiii's Precision 3+, with strain-gauge pods on both crank arms so it measures each leg separately and reports true left/right balance. It's fitted to Shimano cranks and appears as the stock power meter on several Dura-Ace and Ultegra tri bikes.
Fitted to 16 builds across 12 bikes in the database.
Specs
- Type
- Crank arm (both arms)
- Measurement
- Dual-sided (left/right balance)
- Claimed accuracy
- ±1%
- Battery
- CR2032 coin cell
- Battery life
- Up to 550 hours
- Connectivity
- ANT+, Bluetooth Smart
- Weight
- 29 g1 oz
- Notes
- Weight is the 4iiii units only, not the crankset. IPX7 water resistance.
- Released
- 2024
Bikes that come with it
| Bike | Build | Price (MSRP) | Type | Measurement | Notes |
|---|---|---|---|---|---|
| BMC Teammachine R 012027 | Teammachine R 01 TWO | €11,999$13,499£10,999 | — | Dual-sided | BMC lists it as 'Precision Gen3+ Power Meter (Dual Side)' |
| Cervélo P-Series2027 | P-Series Ultegra Di2 | €7,999$8,800€7,999 | — | Dual-sided | — |
| Cervélo P-Series2027 | P-Series Ultegra Di2 Classified | $12,000$12,000$12,000 | — | Dual-sided | — |
| Cervélo P52027 | P5 Dura-Ace Di2 | €13,499$14,500€13,499 | — | Dual-sided | — |
| Cervélo P52027 | P5 Ultegra Di2 | €9,999$10,650£9,100 | — | Dual-sided | — |
| Cervélo S52027 | S5 Dura-Ace Di2 | €13,999$14,350€13,999 | — | Dual-sided | — |
| Cervélo S52027 | S5 Ultegra Di2 | €9,999$10,100£9,450 | — | Dual-sided | — |
| Cube Litening Aero C:68X2027 | Litening Aero C:68X SLT | €7,299€7,299£7,499 | Crank arm | Dual-sided | — |
| Cube Litening Aero C:68X2027 | Litening Aero C:68X Race | €4,999€4,999£4,999 | Crank arm | Dual-sided | — |
| Cannondale SuperSix EVO Hi-MOD2026 | SuperSix EVO 1 SL | €7,999$8,999£7,000 | — | — | — |
| Cannondale SuperSix EVO LAB712026 | SuperSix EVO LAB71 | €11,999$13,499£10,500 | — | — | — |
| Cinelli Aeroscoop2026 | Aeroscoop Shimano Dura-Ace Di2 | €9,900€9,900€9,900 | — | — | — |
| Quintana Roo Studio NEXT Service Course2026 | Studio NEXT Service Course Shimano Dura-Ace Di2 | — | Crank arm | Dual-sided | — |
| Quintana Roo Studio NEXT V-PRi2026 | Studio NEXT V-PRi Shimano Dura-Ace Di2 | — | Crank arm | Dual-sided | — |
| Cinelli Pressure II2025 | Pressure 2 Dura-Ace Disc Di2 | €9,400€9,400€9,400 | — | — | — |
| Quintana Roo V-PRi2024 | V-PRi Shimano Dura-Ace Di2 | — | Crank arm | Dual-sided | — |