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Upgrade your drivetrain with the Shimano CS-R8101 Ultegra 12-Speed Cassette and experience the difference in performance and reliability.
Upgrade your drivetrain with the Shimano CS-R8101 Ultegra 12-Speed Cassette and experience the difference in performance and reliability.

Shimano CS-R8101 Ultegra 12-Speed 11-30T Cassette

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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!


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
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Online Returns Policy

If you are not happy with any items purchased via our website, under Consumer Contracts Regulations you have the right to return any unused products for a refund or exchange within 30 days.

When the customer sends an item back to the company (or, when the company arranges for collecting from the customer), the company will process the returned item then notify the customer via email of the refund. The refund will be issued within 3 - 5 working days of the product being received by us, it may then take an additional 3 - 5 working days for the refund to be paid into the customers account.

For items returned within the cooling off period...

  • By law, customers have the right to withdraw from the purchase of an item within 14 working days of the date on which the item is delivered.
  • Where you are withdrawing from your purchase within the cooling-off period, and there has been no error on our part, we will refund the cost of the item.
  • The company will not refund the cost of delivery or other services provided to the customer in connection with the purchase.
  • The cost of delivery back to the company is the responsibility of the customer.
  • Where we collect an item from you, we reserve the right to recover the costs of collection from you.
  • Returned goods should be unused, in a saleable condition and in their original packaging with all labels still attached. Team Cycles is entitled to refuse the return or deduct from a refund as a result of the product not being in the above condition.
  • We are only able to exchange like for like products. If you require a different item, you will need to opt for a refund and place a new order. All returns must have a completed returns form.
  • We will refund you to your original payment method.
  • We make no charge for returns, there is no restocking fee.
  • Customised items cannot be returned. *
  • Please do not send your purchase back to the manufacturer unless you have been advised to.
  • Team Cycles customers have 30 days from date of delivery to return their orders.
  • Once we have received the returned goods we will refund you, by the method you used to pay for your order. This may take 5-7 working days to appear as cleared funds.

*Faulty customised goods (or goods that have been altered in any way) will need to be returned for inspection as customisation may void your warranty and therefore faults may not be covered.


All products ordered from Team Cycles come with a full warranty which covers manufacturing faults and defects in workmanship. If you feel that your purchase has developed a fault, please contact our store for an assessment. To do this you will need proof of purchase.

If taking your product in store is not an option then please email our team on [email protected]. Please include photographs of your product (please keep below 20mb), your web order number (or copy of receipt) so we can immediately start to assess the issue.


In some cases, the manufacturer/supplier may require to see the item(s) before repair or replacement can take place. If this is the case, we will inform you and arrange how to do this. All used items being returned to us must be cleaned for hygiene purposes.

On receipt of your goods we will carry out a full inspection and contact you within three working days of receipt.


Team Cycles (North East) Limited acts as a broker and not the lender and offers finance from Secure Trust Bank PLC T/A V12 Retail Finance. Team Cycles (North East) Limited is authorised and regulated by the Financial Conduct Authority, Registration Number 623982. Not all products offered by Secure Trust Bank T/A V12 Retail Finance are regulated by the FCA. Subject to age, status and affordability, minimum spend applies.

Shimano CS-R8101 Ultegra 12-Speed 11-30T Cassette



Elevate your riding experience with the Shimano CS-R8101 Ultegra 12-Speed Cassette, designed to meet the demands of performance-driven cyclists. Engineered with cutting-edge technology and precision craftsmanship, this cassette delivers lightweight performance, smooth shifting, and wide gear range to enhance your riding performance on the road, in time trials, and triathlons.

Key Features: Enhancing Your Riding Performance

  • Lightweight Design: Constructed with a rigid alloy sprocket carrier, the CS-R8101 cassette offers reduced weight without compromising durability. Experience improved acceleration and responsive shifting, even during the most demanding gear changes, allowing you to ride with confidence and efficiency.

  • Hyperglide+ Technology: The Hyperglide+ sprockets feature optimized teeth shaping and spacing to provide precise and accurate shifting, while reducing wear on the cassette and chain. Enjoy smooth and reliable gear changes, ensuring seamless transitions between gears for a consistent and efficient riding experience.

  • Wide Gear Range: With a wide gear range, the CS-R8101 cassette meets the demands of all types of riders, from sprinters to climbers. Whether you're powering through flat roads or conquering steep ascents, you'll have the right gear at your disposal to tackle any terrain with ease and confidence.

  • Compatibility: Designed for use with 12-speed chains, this cassette seamlessly integrates with your drivetrain, ensuring compatibility and optimal performance. Experience seamless power transfer and efficient pedaling, allowing you to maximize your performance on every ride.

Ride with Confidence and Performance

Upgrade your drivetrain with the Shimano CS-R8101 Ultegra 12-Speed Cassette and experience the difference in performance and reliability. Whether you're training for your next race or embarking on a long-distance ride, trust Shimano to deliver precision shifting, lightweight performance, and wide gear range to help you reach your cycling goals with confidence and style.

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