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Elevate your electric mountain biking experience with the Crankbrothers Synthesis E-MTB Carbon Ratchet Rear Wheel, engineered to meet the rigorous demands of modern E-MTB riders. This rear wheel features a meticulously crafted carbon fibre construction combined with a reinforced rim profile, delivering exceptional stiffness and durability. Designed to provide superior control and stability, it empowers riders to confidently tackle challenging trails while maintaining precise handling and responsiveness.
With a 31.5mm internal rim width, the wheel maximises the tyre contact patch, enhancing traction for both climbing and braking across diverse terrains. The integration of Sapim Strong spokes further reinforces the wheel’s resilience, ensuring reliable performance under demanding conditions. Central to its design is the innovative Ratchet Drive hub, equipped with a 36-tooth ratchet ring that offers a rapid 10° engagement angle, which can be upgraded for even faster response. This combination guarantees efficient power transfer and smooth pedalling, essential for high-performance electric mountain biking.
Backed by a lifetime warranty on the rims, the Crankbrothers Synthesis E-MTB Carbon Ratchet Rear Wheel is a durable and versatile upgrade for serious riders. Its tubeless-ready design and 6-bolt hub compatibility make it suitable for a wide range of electric mountain bikes, enhancing both performance and reliability. Explore more from Electric Mountain Bikes and discover the full range of Bikes to complement your riding style.
Is this wheel compatible with all E-MTBs?
The Crankbrothers Synthesis E-MTB Carbon Ratchet Rear Wheel is designed to fit most modern electric mountain bikes featuring 6-bolt disc brake hubs and tubeless-ready rims. It is recommended to verify your bike’s specifications to ensure compatibility.
What is the advantage of the Ratchet Drive hub?
The Ratchet Drive hub provides a low-drag mechanism with rapid engagement, enabling efficient power transfer and durability. The standard 36-tooth ratchet ring delivers a 10° engagement angle, with an optional upgrade to a 54-tooth ring for a faster 6.6° engagement.
How does the wheel improve trail handling?
The reinforced carbon fibre rim enhances stiffness and stability, particularly during high-speed cornering and technical riding. The wide rim supports a larger tyre contact patch, improving grip and control across varied terrain.
Is tubeless setup supported?
Yes, this wheel is tubeless-ready, allowing riders to run lower tyre pressures for increased traction and reduced risk of punctures.
What is covered under the lifetime warranty?
The lifetime warranty protects the rim against manufacturing defects, providing peace of mind for long-term use and investment in quality components.
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.

