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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The Shimano SM-CRM81 XT 11-speed M8000 1X DCE Single Chainring is engineered to deliver exceptional performance and durability for mountain biking enthusiasts. Crafted with a steel tooth and CFRP body, this chainring strikes the perfect balance between lightweight design and robust strength. Its precise construction ensures smooth and reliable shifting even under the most demanding conditions, making it an ideal upgrade or replacement for worn-out components.
Incorporating Shimano’s innovative DYNAMIC CHAIN ENGAGEMENT+ technology, this chainring optimizes the tooth profile to enhance chain retention and provide a smoother pedaling experience. Designed specifically for Shimano’s 11-speed HG chains, it improves power transfer efficiency, helping you maintain control and speed on challenging terrains. Available in 34T, 32T, and 30T options, it seamlessly fits FC-M8000 1X cranksets, ensuring compatibility and maximum performance.
Will this chainring fit my Shimano FC-M8000 crankset?
Yes, the SM-CRM81 XT chainrings are designed specifically for FC-M8000 1X cranksets and come in 34T, 32T, and 30T sizes to match your preference.
Can I use this chainring with other 11-speed chains?
For optimal performance, it is recommended to pair this chainring with Shimano’s 11-speed HG chains, as the design is optimized for this combination.
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.











