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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The Bontrager Line 34.9 Dropper Seat Post offers riders a seamless and reliable solution for on-the-fly saddle height adjustments. Designed with a robust 3-key chassis, this dropper minimizes shaft play, ensuring smooth and consistent travel every time you engage it. Whether navigating technical descents or climbing steep trails, the air-sprung hydraulic locking cartridge provides infinite adjustability within its dropping range, allowing for personalized comfort and control.
Its 2-bolt rocker head features micro-adjustment capabilities, making saddle tilt fine-tuning straightforward and precise. Compared to previous versions, the shorter overall length enhances compatibility and adjustability, fitting a broader range of frames. Internal cable routing keeps the housing neatly tucked away, preventing interference with moving wheels and contributing to a clean and efficient setup. Please note that your frame must support internally routed seat post cables for optimal installation.
Adjusting travel to your exact preference is quick and easy thanks to available travel reducers in 10 mm and 30 mm sizes. Installation is simple and tool-free, allowing you to achieve the perfect fit in minutes. The Line 34.9 also features MaxFlow technology, accelerating hydraulic fluid movement for a faster return and smoother operation. Additionally, it requires 20% less saddle force to lower, making drops effortless. With its larger 34.9 mm diameter, this post delivers increased structural strength, less stiction, minimal side-play, and enhanced durability, ensuring long-lasting performance on every ride.
Is the Bontrager Line 34.9 compatible with all bike frames?
It requires a frame compatible with internally routed seat post cables, so compatibility depends on your bike’s design.
How do travel reducers work and are they difficult to install?
Travel reducers are available in 10 mm and 30 mm sizes and install quickly by loosening the collar, aligning the reducer, and tightening it back up, making fine-tuning easy.
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.












