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




Free UK standard shipping on orders over £50
Enhance your road cycling performance with the Shimano Tiagra ST-R4020 STI and BR-RS405 hydraulic disc brake caliper kit, expertly engineered to deliver seamless 11-speed shifting and dependable hydraulic braking. This advanced system features slim, ergonomic dual control levers designed for intuitive operation, allowing riders to execute rapid, precise gear changes with minimal effort. The short shift arc is optimised to match natural hand movements, improving control and responsiveness during every ride. Explore more from Shimano and discover complementary components within our Bike Components collection.
Designed for consistent stopping power and enhanced rider comfort, the hydraulic brake lever offers superior modulation and reduced hand fatigue, especially when operating from the hood position. The automatic pad-to-rotor clearance adjustment ensures optimal braking performance with less maintenance required. This comprehensive kit includes the ST-R4020 STI lever, BR-RS405 caliper with brake pads, hose, and gear cable, all ready for straightforward installation (note that rotor and adapter are sold separately). Utilising Shimano mineral oil, the hydraulic system guarantees reliable, long-lasting performance under varied road conditions.
Is the hydraulic system pre-bled?
Yes, the kit is supplied pre-bled to allow immediate installation and ensure optimal hydraulic performance.
Can I use this with any 11-speed Shimano rear derailleur?
This system is compatible specifically with Shimano RD-R4000 and RD-U6040 rear derailleurs to guarantee precise and reliable shifting.
What accessories complement this braking and shifting system?
For enhanced performance and safety, consider pairing this kit with compatible pedals, helmets, and lighting solutions available within our Cycling Accessories collection.
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.
