Call Us: 01782 747782
Free UK Shipping Over £50 & Easy Returns




Free UK standard shipping on orders over £50
Engineered for the discerning e-mountain bike rider, the Crankbrothers Synthesis Alloy E-Bike Rims deliver a precise balance of durability, control, and performance. This front and rear rim system is meticulously tuned to withstand the unique demands of aggressive trail riding and racing, ensuring optimal handling and stability. Crafted from premium 6013 T6 Alloy, these rims combine strength with lightweight construction, making them a reliable choice for riders seeking both resilience and responsiveness.
The front rim is designed with compliance in mind, enhancing grip and control during sharp turns through a wider inner rim width that supports broader tire profiles. This design increases the contact patch and volume for superior traction and a more rounded tyre shape, which contributes to improved cornering performance. In contrast, the rear rim emphasises stiffness and stability, engineered to maintain tracking at high speeds and endure peak loads. Its narrower inner rim width sharpens the tyre edge, reducing rolling resistance and enhancing grip across diverse terrains. For those interested in exploring more from Crankbrothers or expanding their setup, consider browsing the full range of e-mountain bike components.
Is this suitable for different rider sizes or preferences?
The Crankbrothers Synthesis Alloy E-Bike Rims are available in multiple configurations, compatible with 27.5" and 29" wheel sizes. This flexibility allows riders to select rims that best fit their bike’s hub and tyre specifications, accommodating a range of rider preferences and requirements.
What key accessories or add-ons complement this model?
To optimise your e-mountain bike setup, consider pairing these rims with quality tyres, robust pedals, and essential safety gear such as helmets and lights. Explore our collections of tyres, pedals, and helmets to find compatible accessories that enhance performance and safety.
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.Â
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.Â
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.

