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Inpeak

Shimano Ultegra R8100 Inpeak Power Meter Crank Arm

£374.99
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

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

Thank you for shopping with us. We strive to provide you with the best products and services. If, for any reason, you are not completely satisfied with your purchase, we offer a return and refund policy subject to the following terms and conditions:

  1. Returns Accepted:

    • We accept returns within 30 days from the date of purchase.
    • To be eligible for a return, the item must be unused, in its original condition, and in the original packaging.
    • Proof of purchase, such as an order number and receipt, is required for all returns.
  2. Return Shipping:

    • Customers are responsible for arranging and covering the cost of return shipping.
    • We recommend using a trackable shipping method to ensure that the returned item reaches us safely.
  3. Restocking Fees:

    • A 10% restocking fee will be applied to all returned bikes and all items that are returned but not faulty.
    • This fee covers the cost of inspecting, repackaging, and restocking the item for future sale.
  4. Final Sale Items:

    • Please note that final sale items are not eligible for return or refund.
    • Final sale items are clearly marked as such on the product page or during the checkout process.

Order Cancellation – Special Order Bikes:

If you place an order for a bicycle that is not held in stock and must be specially ordered from a supplier on your behalf, the following cancellation terms apply:

  • If you choose to cancel the order before the bike has been shipped or delivered, a non-refundable fee of £200 will be retained.
  • This fee covers supplier ordering costs, administrative processing, and associated handling charges incurred by us.
  • By placing such an order, you agree to these cancellation terms.

  1. Refunds:

    • Once your return is received and inspected, we will send you an email notification to inform you of the approval or rejection of your refund.
    • If your return is approved, the refund will be processed to the original payment method used during the purchase.
    • Please allow for a reasonable processing time for the refund to be reflected in your account, depending on your payment provider.
  2. Damaged or Defective Items:

    • In the rare event that you receive a damaged or defective item, please contact our customer support within 48 hours of receiving the product.
    • We may require photo evidence of the damage or defect to facilitate the return process.
  3. Delivered Bicycles
    • All bicycles shipped from us are inspected before they are boxed. However, due to the nature of packaging the bike into a box, some minor assembly will be required. This assembly is recommended to be conducted by a certified mechanic. If the bike is not checked by a qualified mechanic then your warranty may not be valid.
Multiple returns of items including clothing will be subject to the 10% restocking fee

Please note that this return and refund policy applies only to purchases made directly from our online store. For products purchased through third-party retailers or other channels, their respective return policies and procedures may apply.

We reserve the right to update or modify this return and refund policy at any time without prior notice. It is your responsibility to review and understand the terms and conditions outlined here before making a purchase.

If you have any further questions or require assistance regarding returns or refunds, please contact our customer support, and we will be happy to assist you.

Shimano Ultegra R8100 Inpeak Power Meter Crank Arm

Brand:Inpeak

Code:180509GRY

Shimano Ultegra FC-R8100 Power Meter

POWERCRANK | SINGLE

Single-sided power meter integrated with Shimano Ultegra FC-R8100 crank.

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
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