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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
Discover the Dia-Compe Tech 4 (Mx123) brakes, a perfect blend of classic BMX style and reliable performance. These brakes feature a cold forged aluminum lever handle paired with a sturdy aluminum bracket, ensuring durability and smooth operation. Their timeless design evokes the old school BMX spirit while meeting modern standards for control and responsiveness.
Available with clamps sized at 22.2mm or 23.8mm, the Tech 4 (Mx123) brakes adapt seamlessly to a variety of bike setups. Sold individually for either right-hand or left-hand use, they offer flexibility for riders who want to customize their braking system with precision. Choose from a vibrant palette of anodised colors including red, blue, black, gold, silver, or a powder-coated white finish to match your personal style.
Whether you’re restoring a vintage BMX or upgrading your current setup, these brakes deliver reliable stopping power with a nostalgic touch. Their lightweight yet robust construction ensures you maintain full control in every ride, combining function and fashion in one essential component.
Are these brakes compatible with all BMX bikes?
The Tech 4 (Mx123) brakes are compatible with BMX bikes that accept clamp sizes of 22.2mm or 23.8mm. It’s important to verify your bike’s handlebar diameter before purchase.
Can I buy both left and right levers together?
These brakes are sold individually, allowing you to purchase the specific side you need or both separately for full braking control customization.
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.








