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INPEAK GRX RX820 Powercrank - Single
INPEAK GRX RX820 Powercrank - Single
Inpeak

Shimano GRX RX820 Inpeak Power Meter Crank Arm

£374.99
Pre-Order

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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

Hassle-Free Returns

30-day returns on eligible online purchases.
Items returned under our extended policy must be unused and in their original condition.
Contact web@onyerbike.com with your order number for return instructions.

Change-of-mind return postage is payable by you.
A 10% restocking fee applies only to voluntary returns outside statutory cancellation rights.

Faulty, damaged or incorrect item?
Contact us and we’ll help put it right.

Most online purchases also include a 14-day cancellation rightfollowed by 14 days to return the goods. Your statutory rights are unaffected.

See our full Terms & Conditions for exclusions, special orders and finance or cycle-to-work returns.

Shimano GRX RX820 Inpeak Power Meter Crank Arm

Brand:Inpeak

Code:180517BLK

POWERCRANK | SINGLE

Single-sided power meter integrated with Shimano GRX FC-RX810/RX820 crankset.

Designed without compromise to meet the highest demands of riders.

WHAT IS POWERCRANK?

This is our most popular version of the power meter created out of passion for cycling. It’s not just a device that measures power, it’s your training partner with which you will enter a new level of sportsmanship. INPEAK POWERCRANK power meter uses ANT+ and BLE transmission protocols to send power, cadence and a lot of detailed cycling performance data. The waterproof and impact-resistant case is designed to meet the demands of MTB, Gravel and Road. POWERCRANK provides a very long run time on the popular CR2023 battery. Precise and accurate readings of generated power regardless of weather conditions are provided by the ATC automatic temperature compensation mechanism from -5°C to +50°C.

WHAT MAKES US DIFFERENT?

  • Created in Poland – we sign ourselves to this product,
  • Low price – one of the cheapest solutions on the market,
  • Accuracy – our R&D department does not compromise, what matters is flawlessness,
  • Individual calibration – each power measurement we install is individually calibrated,
  • Active temperature compensation – temperature changes do not affect accuracy, the measurement adapts automatically,
  • Durability – confirmed by hundreds of professional riders.

Specifications of the Power Meter

  • Measurement precision: ± 2%
  • Power measurement range: 20-2000 W
  • Cadence range: 20-200 rpm
  • Weight: 10g (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 specifications

  • Battery type: Lithium CR2032 3V
  • Battery capacity: 200 mAh
  • Battery autonomy in use: max. 200 hours
  • Battery autonomy in sleep: max. 6 months
  • Battery autonomy in ShipMode: max. 24 months
  • Low battery notification: Yes

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 contents

  • Crank with integrated power meter
  • Brief instruction manual
  • Sticker set
  • Spare O-Ring
  • Device data card
  • 1x CR2032 battery
Sizing Information
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