Magene PES 515 Power Meter Crank

The best priced and most accurate power meter crank on the market. Exquisite design presents professional performance of stiffness and shifting. Whether it is a cycling gathering on the weekend, an exciting cycling tour, or a training block or race with a great sense of achievement, the PES series will always deliver. 4 essential cycling metrics — evaluate your ability comprehensively Power: sensitive and reliable power measurement, reaching ±1% accuracy. Cadence: accurate and stable cadence data measurement always keeps your rhythm in control. Left and right balance: know the difference between your left leg and right leg output, so you can target the weaker leg in training. Pedaling smoothness: analyze the power balance across your pedaling cycles. Perfect for Budget-conscious cyclists wanting their first power meter Training enthusiasts who prioritize accuracy over weight Riders with Shimano groupsets seeking easy compatibility Cyclists with T47 bottom brackets Why choose the PES 515? Best value for spider-based measurement: true total power measurement — not a doubled single-side estimate — at the lowest price point. Heavier than crank-arm options, but more accurate total power. Exceptional battery life: at 330+ hours it outlasts most competitors by 2–3×, reducing maintenance hassle. Future-proof compatibility: T47 support and Shimano integration make it ideal for modern bike builds. In use The power meter works out of the box. Configure it via the Magene app, where you can also update firmware, then pair it with your GPS head unit — calibration can be started from the head unit too. Because it is a spider-based power meter sitting between the crankset and chainring, total power readings are accurate and stable, and cadence is reported so no separate cadence sensor is needed. Specifications Accuracy: ±1% Battery life: 330+ hours Measurement type: spider-based total power (true, not doubled) Metrics: power, cadence, left/right balance, pedaling smoothness Bottom bracket compatibility: includes T47 support Groupset compatibility: Shimano Setup: Magene app for configuration and firmware updates Crank lengths: 165 mm, 170 mm, 172.5 mm, 175 mm Chainrings not included.