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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The Inpeak Ultegra R8100 Powercrank-E - Single is a cutting-edge power meter seamlessly integrated with the renowned Shimano Ultegra FC-R8100 crankset. Engineered to deliver precise and reliable power measurement, this single-sided powermeter is designed for cyclists who demand accuracy and durability without compromise. Featuring a rechargeable battery and advanced ANT+ and BLE connectivity, it offers real-time transmission of power, cadence, and detailed cycling metrics, making it an indispensable tool for road and gravel riders striving for peak performance.
Built with a low-profile, waterproof design rated IP67, the Powercrank-E withstands harsh weather conditions while maintaining consistent accuracy through automatic temperature compensation between -5 °C and +50 °C. Developed in Poland with meticulous individual calibration, this powermeter stands out for its exceptional precision of ±2% and a wide power measurement range from 20 to 2000 W. Its lightweight 10 g device ensures no compromise in pedaling dynamics, offering a natural riding feel alongside advanced features like torque effectiveness, pedal smoothness, and cycling dynamics data.
With a rechargeable Li-Po battery providing up to 90 hours of use and quick 2-hour charging, the Powercrank-E supports extended training sessions and is always ready to perform. The device also incorporates a gyroscope and accelerometer for enhanced data accuracy and is compatible with popular training platforms like Zwift. Supported by the INPEAK MANAGER app, software updates are straightforward, and users can customize settings such as scale factor calibration. The package includes everything necessary for installation and operation, including the crank with integrated power meter, USB charging cable, instruction manual, and stickers.
How does the Powercrank-E maintain accuracy in varying temperatures?
The device features an automatic temperature compensation mechanism that adjusts measurements between -5 °C and +50 °C, ensuring consistent accuracy regardless of environmental changes.
Is the Powercrank-E compatible with popular training apps and devices?
Yes, it supports ANT+ and Bluetooth Low Energy protocols, making it compatible with a wide range of devices and training software including Zwift.
What is included in the package?
The package comes with the crank featuring the integrated power meter, a magnetic USB charging cable, a brief instruction manual, a set of stickers, and a device data card.
How long does the battery last and how is it charged?
The rechargeable Li-Po battery provides up to 90 hours of active use and can be fully charged within 2 hours using the included magnetic USB cable.
Can I update the device software myself?
Yes, the INPEAK MANAGER app allows for easy software updates and customization of settings like scale factor calibration.
Stock Status Instock - Instore - Item Usually shipped or available for shop collection, within 48 hours (Mon-Fri)
Instock - Supplier Warehouse - Item is held in Suppliers Warehouse, Depending on the the supplier transfer time can vary from 24 Hours to 14 Days for item held in European warehouse.
(over festive periods some suppliers shut from 24th Dec-2nd Jan so orders can be delayed through this period.)
Brands held in European website include Trek, Bontrager, Electra, Wahoo, Rapha. For up-to-date transfer times please call customer services on +44 (0)1782 768622
Most out products are shipped by FedEx, providing unprecedented reliability and speed. Lightweight Spares below £25.00 value have a Royal Mail postage option, which is sent via Tracked 48 service. - £2.99
Shipping on all Domestic Orders over £50.00 (excluding bikes and home trainers) for delivery within the UK is completely FREE!
Bike and Home Trainers and oversize Goods £15.00 - FedEx
White Glove Bike Delivery - our white glove option has your bike personally delivered to you by a fully trained Mechanic and Bike fitter - £99.99
(Certain bikes will only have this option such as Cargo Bikes)
To Qualify for FREE Shipping:
In some cases, we may ship items out with another courier, depending on the status and availability of items ordered. (Customers will not be charged more and will be refunded any unused postage cost) If part of an order is cancelled and the total drops below the £50.00 free postage, a postage charge may be taken.
Delivery costs will be clearly stated on the checkout page, though you will need to register (to provide your delivery address) in order to see the delivery costs.
If you have any questions about delivery charges, times or none delivery please do not hesitate to get in touch by email:store@swinnertoncycles.co.uk or by telephone on +44 (0)1782 768622. Handling is normally 48 hours, but at busy periods this may be extended but we will endeavor to process your order within 5 working days. Please bear in mind in some cases orders can take longer to process, please contact us for more details.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


