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


Free UK standard shipping on orders over £50
The BOX MTB Box Two P9 X-Wide Single Shift E-Bike Groupset offers a balanced blend of high performance and value, designed specifically for e-bike riders who demand reliable transmission components without the premium price tag. This groupset delivers smooth and precise shifting with its Tri-Pack™ Clutch derailleur, ensuring consistent chain retention even on rough terrain. The 12-50T cassette provides a wide gear range perfect for tackling steep climbs and fast descents, while the shifter guarantees snappy and responsive gear changes.
Constructed with durability in mind, the Box Two Prime 9 components are compatible with most 10, 11, and 12-speed wide/narrow chainrings, making it versatile and easy to upgrade your e-bike drivetrain. The included shift cable and housing kit simplify installation, and the Prime 9 chain ensures optimal performance and compatibility. Whether you’re upgrading your current setup or building a new ride, this groupset is engineered to meet the demands of modern electric mountain biking.
Explore more from the BOX MTB brand and discover additional groupset options and add-ons to customize your e-bike for any trail or ride style.
Is this groupset compatible with my existing chainrings?
Yes, the BOX MTB Box Two P9 is compatible with most 10, 11, and 12-speed wide/narrow chainrings, provided you use the Prime 9 chain included in the set.
Can I use this groupset on a non-electric mountain bike?
This groupset is specifically designed and intended for e-bike use to handle the additional torque and demands unique to electric mountain bikes.
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.