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Free UK standard shipping on orders over £50
Experience unparalleled suspension performance with the RockShox Rear Shock Super Deluxe Thru Shaft RCT (230X57.5). Engineered through the powerful collaboration between Trek and RockShox, this shock is designed to elevate your all-mountain enduro riding. Its innovative ThruShaft technology delivers lightning-fast response to terrain changes, providing unmatched control and confidence on every descent.
This shock is crafted for versatility and precision. With a redesigned Low Speed Compression adjustment featuring three customizable settings, you can effortlessly fine-tune your suspension to match any trail condition. The oversized thermal compensator ensures consistent damping performance even during the longest, most demanding rides, while the fully checked damper allows your compression and rebound settings to work independently for seamless adjustments on the fly.
Designed with both frame integration and rider ergonomics in mind, the Super Deluxe Thru Shaft RCT features numerically indicated rebound adjustments to simplify setup and eliminate guesswork. Available in Trek-specific Trunnion ThruShaft 230x57.5 configuration, this rear shock is a top-tier choice for riders who demand precision, durability, and superior ride quality.
Is this shock compatible with all Trek mountain bikes?
The Super Deluxe Thru Shaft RCT is specifically designed for Trek's 2021+ Rail models with Trunnion/Yoke mounts in 230x57.5 size. Compatibility with other models should be verified based on frame specifications.
Can I adjust the suspension settings while riding?
Yes, the shock features external rebound and compression adjustments that are easy to tune on the trail, allowing you to adapt quickly to varying terrain conditions.
Does this rear shock come with mounting hardware?
No, this product does not include any hardware. You will need to procure the appropriate hardware separately to complete the installation.
Can I use this shock with other air spring tokens besides purple?
This model is only compatible with purple tokens for fine-tuning the positive and negative air springs, ensuring optimal suspension performance.
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.

