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Black power meter crank arms labeled "GRX" and "INPEAK," featuring a sleek design with a digital display and sensor compartment for performance tracking.

INPEAK Shimano GRX RX810/RX820 Powercrank-E - Single - 170mm

by INPEAK

£399.99from 2 retailers
GTIN05907465631808
EAN5907465631808
MPNIPCV40SHG8270B
Prices updated 24 Jun 2026

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Product Description

The INPEAK Shimano GRX RX810/RX820 Powercrank-E - Single is a single-sided power meter crank that delivers precise power data, rechargeable convenience, and reliable performance for gravel and road riding. It integrates directly with Shimano GRX FC-RX810/RX820 cranks, using a lightweight 10 g sensor with ±2% accuracy. The rechargeable Li-Po battery charges via a magnetic USB cable and provides up to 90 hours of use. ANT+ and Bluetooth connectivity ensure full compatibility with training devices and apps. A sealed IP67 housing and active temperature compensation maintain consistent readings in all weather conditions.Key Features and Benefits:Single-sided power meter integration: Measures power directly from the crank arm using a precise strain gauge system. This gives consistent and accurate data without adding complex components, resulting in reliable training metrics with minimal setup.Rechargeable Li-Po battery system: Uses a 110 mAh rechargeable battery with magnetic USB charging. This removes the need for disposable batteries, reduces maintenance, and ensures long operating time of up to 90 hours between charges.±2% measurement accuracy: Individually calibrated power measurement ensures a high level of precision. This supports structured training by providing dependable data, leading to better pacing and performance tracking.ANT+ and Bluetooth connectivity: Transmits power, cadence, and cycling dynamics data to a wide range of devices and apps. This allows seamless integration with head units and platforms, ensuring consistent data across all training systems.Active temperature compensation (ATC): Automatically adjusts readings across -5°C to +50°C. This prevents data drift caused by temperature changes, ensuring stable and accurate output in all riding conditions.IP67 waterproof and durable housing: Fully sealed electronics protect against water, dust, and impact. This increases product lifespan and ensures dependable use in wet and harsh environments.Advanced cycling dynamics (TWiN2): Includes torque effectiveness, pedal smoothness, and left/right balance metrics. This provides deeper insight into pedalling efficiency, helping refine technique and improve overall output.Lightweight low-profile design: Adds only 10 g to the crank arm with a compact form. This maintains the original feel of the bike while delivering full power measurement, ensuring no compromise in performance or handling.Consistent and accurate power data supports structured training and performance tracking across every ride. The combination of precise measurement, stable transmission, and temperature-resistant performance ensures that the data remains reliable over time. Integration with Shimano GRX maintains drivetrain compatibility while adding detailed performance metrics. The rechargeable system reduces long-term maintenance and keeps the setup simple.This power meter crank provides accurate data, long battery life, and durable construction in a single unit. It fits easily into your existing setup and works with your preferred training platforms. It is a practical upgrade for riders who want clear and reliable performance data on every ride.Specification:Measurement precision: ± 2% Power measurement range: 20-2000 W Cadence range: 20-200 rpm Weight: 10 g (INPEAK device) Case tightness: IP67 Manual zero-offset calibration: Yes Temperature compensation: Yes Gyroscope + Accelerometer: Yes Torque Effectiveness: Yes Pedal Smoothness: Yes Cycling Dynamics: Yes (TWiN2) Balance L/R: Yes (TWiN2) Operating temperature: from -5°C to +50°C Storage temperature: from -20°C to +50°C Battery specificationsBattery type: "Li-Po, rechargeable "Battery capacity: 110 mAh Battery autonomy in use: max. 90 hours Battery autonomy in sleep: max. 6 months Battery autonomy in ShipMode: max. 24 months Charging time (0% -> 100%): 2 hours Low battery notification: Yes Battery charging temperature: from +5°C to +40°C Battery lifetime: Less than 20% capacity loss after 300 full cycles. Approximately 6 year lifetime. Required charger: 5VDC, 1000mA (not included)Software specifications Software update from INPEAK MANAGER App: Yes Modification of “Scale Factor”: Yes Zwift Compatible Mode: Yes ANT+ Compatibility: Yes Bluetooth Low Energy Compatibility: Yes Auto sleep: Yes Auto wake-up: Yes Package contentsCrank with integrated power meter USB charging cableBrief instruction manual Sticker setDevice data card

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