5277855
601842777442
The Trek Rail 5 Gen 3 Performance CX 625Wh Deore Electric Full Suspension Mountain Bike In Mercury Small 15.5 Inch Mercury is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
The Rail 5 625Wh is an electric mountain bike built for ripping the big stuff. It features the same high-end trail tech as Trek's analogue trail bikes, plus a powerful Bosch drive system that's basically like having your own shuttle.
It's right for you if...
You’re looking for an e-MTB that’s just as ready to shred as non-electric trail bikes. You want a powerful Bosch drive system that’ll propel you up climbs so you can hit lap after lap.
The tech you get
A burly alloy frame with 150mm of rear travel and a 625Wh Removable Integrated Battery, an e-MTB optimised 160mm RockShox 35 Gold RL fork, the smart system Performance Line CX motor from Bosch which is capable of speeds up to 20mph (25km/h in Europe), including a Bluetooth LED remote for easy connectivity and activity tracking through the eBike Flow app. Plus, a 1x12 drive train with a wide gear range so you can always find the ideal cadence for the motor, a dropper post, powerful 4-piston brakes for more downhill confidence and 29er wheels with nimble yet grippy 2.6" tyres.
Why you'll love it
Removable Integrated Battery
RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security or just easier charging.
Bosch Performance Line CX motor
The Bosch Performance Line CX sets the standard for eMTB performance with up to 85 Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
Bosch LED Remote
The Bosch smart system LED remote lets you easily change assist modes, activate walk mode or turn on optional lights. The bright LEDs are easy to see in any light, and show you your battery level and assist mode at a glance.
Bosch Smart System
The Bosch smart system gives you an eMTB that's more connected than ever. The LED remote connects with Bosch eBike Flow app so you can get ride stats, adjust settings and perform system updates. Plus, Bluetooth connectivity makes it easy to add a display if you want to make it easier to see your ride data.
Bosch eBike Flow app
The new eBike Flow app turns your ride into a personalised experience. Use it to customise your motor's assist behaviour, track your ride stats and integrate your data with apps like Strava and Apple Health. There's even handy features like navigation and service reminders.
Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
Shimano Deore
Shimano Deore brings even more adventure with a wider range of gear choices for the steep stuff, the fast stuff and the fun. With smooth riding, improved chain stability and sharp shifting, Deore heightens your mountain biking confidence and control so you can focus on the trail and enjoy the ride.
The final word
The Rail 5 625Wh is Trek's best-value long-travel e-MTB. It's equally as capable as their regular long-travel trail bikes, it just gets you back to the top in a flash. Plus, the bigger battery means more time on the trail.
Click & Collect
For Click & Collect orders, for security you must present photo ID plus the payment card used at time of collection. This is also applicable when you have purchased using V12 Finance. For more information click HERE
Parts & Accessories
Place an order for £50 or more and delivery is free to mainland UK (including Highlands), for an order under £50 delivery is charged at £8.99.
For Highlands, Northern Ireland, Isle Or Man and other non mainland locations additional charges will apply. For parts and accessories we aim to despatch the next working day after the order is placed.
For hygiene and safety reasons, helmets cannot be returned or exchanged unless they are faulty. Please ensure you choose the correct size and style before purchasing.
Delivery With Multiple Items On Order
Please note if you order more than one item online your products may arrive in separate shipments. We do aim to send everything together but logistically this is sometimes just not feasible. For more information about delivery timescales please click HERE
Lead Times Electric Bikes
Before despatch, bikes are built, configured and tested by one of our experienced technical team.

We aim to despatch an in-stock bike 1-4 days after an order is placed (not including weekends / bank & public holidays). For bike located in a warehouse location we aim to dispatch within 8-10 days (not including weekends / bank & public holidays).
Please note the dispatch timescale shown in on our website / basket / order confirmation are estimated. If applicable Saturdays are included in the calculation however items are normally only dispatched Monday to Friday.
Bikes will be delivered by DX or TNT, please for some models the front wheel will be packed in a separate box but both wheel and bike should be delivered at the same time.
On all boxed deliveries the product name on the box may not match the model inside (our team sometimes have to use a different box than the one that initially came from the manufacturer) so please open the box to check!
Please note that Cube Stereo models are not supplied with pedals, browse our range HERE
Boxed Bike Delivery
Boxed delivery requires basic assembly of your bike when it arrives. Generally the front wheel will need to be reattached, the bars will need to be turned plus pedals fitted.
Watch our video to show how to assemble your bike from the box HERE
FREE boxed bike delivery Our Free Boxed Delivery for bikes / baskets £999 and above is FREE to UK mainland locations (excluding Highlands where there is an additional surcharge payable).
For bikes under £999 we charge £49.99 for boxed delivery to to UK mainland locations (excluding Highlands where there is an additional surcharge payable).
We can also deliver a bike to BT Northern Ireland and IM Isle Of Man subject to surcharges plus Orkney and Shetland Islands, please refer to the map below for our current prices, for other non mainland locations please contact us for a quote.

Ready2Ride Delivery
Choose our Ready2Ride Service and one of our team will deliver your new bike, fully built, configured and tested, we will personally hand over your new bike, make adjustments if required and can also wait while you take a short test ride round the block. If your postcode qualifies for this service it will be available to select at checkout. If your delivery address is outside our delivery area please contact our Customer Services team on 0117 452 6571
Ready2Ride Delivery For Cargo Bikes
From mid July 2024 we are now able to deliver a cargo bike in a box for FREE (to our regular FREE delivery areas - not Highlands etc)
Previously as our cargo bikes are larger than standard electric bikes they were only available for home delivery via our Ready2Ride delivery option (or click and collect), you can still select this option however if you prefer. One of our team will deliver your new bike, fully built, configured and tested, we will personally hand over your new bike, make adjustments if required and can also wait while you take a short test ride round the block.
This premium delivery is available to locations within a 50-75 miles radius of one of our stores. If your postcode qualifies for this service it will be available to select at checkout. If your delivery address is outside our delivery area please contact our Customer Services team on 0117 452 6571
We accept vouchers from Cyclescheme, Cycle2Work (also known as Halfords Cycle2Work), Bike2Work, Cycle Solutions, Caboodle, Dash, Green Commute Initiative, Gogeta, My Benefits World & Vivup.
Find out more on our Cycle to Work page HERE
If you need a quote, you can save your basket as a quote at the checkout, or get in touch by phone, email or via our Live Chat and one of our team will send you a quote by email.
CycleScheme vouchers can be used when purchasing online, select ‘payment’ option in checkout and provide your voucher number and redemption code. Our team will then be in contact and will process your voucher.
To purchase a bike via Cycle2Work, Bike2Work, Cycle Solutions, Caboodle, Dash Rides, Green Commute Initiative, Gogeta, My Benefits World & Vivup please contact our Customer Services Team on 0117 452 6571 and we will process your order manually.

Service Plans are available on all bikes purchased in store and online within 60 days of purchase and a great way to save money on future services.
Your Service Plan is non-refundable, non-transferable and is registered to you and your bike (frame number required)
To ensure that we never let our you down, we proactively monitor competitor prices and adjust our own prices every week.
However, if you do find a product online for less than the price offered on our website or in store, please get in touch and we may be able to match it, as long as it matches the criteria below.
If you want to request a price match from us, simply contact our customer service team on 0117 452 6571 or contact us via our live chat.
| Brand | Trek |
| Barcodes | 601842777411, 601842777428, 601842777435, 601842777442 |
| SKUs / Part Numbers | 5277855, 5277856, 5277857, 5277858 |
2 and 3 year service plans available from £7.22 per month. Purchase now and enjoy significant savings over buying servicing annually.
A bike helmet is probably the most important bike accessory you can buy, quality helmets available online or in store.
Always lock your bike even if you are leaving it for just a few seconds, choose from a range of quality locks
Backpacks, Panniers, Baskets, Frame, Box, Saddle Bags & More! Transport your essentials from A to B with ease and comfort.