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Free UK Shipping Over £50 & Easy Returns


Free UK standard shipping on orders over £50
The Lezyne Saddle Ai Alert 250 Rear Light is an innovative safety accessory designed to enhance your visibility on the road. Featuring advanced 'Ai Alert' brake sensing technology, it intelligently detects when you decelerate and adjusts its light output accordingly, providing an extra layer of communication to those behind you. With a maximum brightness of 250 lumens and a remarkable 60-hour runtime in the low-power Femto mode, this rear light ensures you remain visible during all your rides, day or night.
Crafted from fully CNC aluminium, the Saddle Ai Alert 250 offers durability and a sleek, lightweight design at just 73 grams. Its wide-angle optics deliver a 270-degree field of visibility, making it easier for motorists and other cyclists to spot you from various angles. The IPX7 waterproof rating guarantees reliable performance even in adverse weather conditions, so you can ride with confidence regardless of the elements.
Equipped with seven combined solid and flash output modes, including a highly disruptive Daytime Flash, the light adapts to different riding environments and preferences. USB-C rechargeable for convenience (charging cable not included), this tail light is a perfect blend of technology, efficiency, and practicality, making it an essential safety upgrade for any cyclist.
How does the Ai Alert brake sensing technology work?
The Saddle Ai Alert 250 detects changes in your speed and deceleration using built-in sensors, automatically adjusting the light’s output to alert others when you are slowing down or stopping.
Is the light waterproof for all weather conditions?
Yes, it meets the IPX7 waterproof standard, meaning it can withstand immersion in water up to 1 meter deep for 30 minutes, so it performs reliably in rain and wet environments.
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.