Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with Pedalsure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Trek Rail 5 Deore Gen 3 Electric Mountain Bike
With a burly alloy frame, 160mm and 150mm of travel front and rear respectively, and a powerful Bosch motor and battery system, the Trek Rail 5 Deore Gen 3 Electric Mountain Bike is ready to hit the big stuff, and propels you back up too. More power and a bigger battery mean more fun on the trails (adding a pedalling assisted boost up to 15.5mph / 25kph), and the latest smart system with Bluetooth-connected LED remote maximises control and customisation of the system via the eBike Flow app. The Removable Integrated Battery (RIB) system is well hidden within the frame while being easy to remove for charging.
The frame itself incorporates Mino Link adjustable geometry, a stiff Straight Shot downtube and Active Braking Pivot (ABP), the latter keeping the rear suspension working as you brake to reduce chatter and unintentional skids.
A Shimano Deore-mix drivetrain brings effective, precise shifting and a wide gear range, while powerful 4-piston hydraulic disc brakes stop you fast in all conditions. 29" wheels are fitted with nimble, grippy Bontrager XR4 Comp tyres for bump absorption and fast, confident cornering. A dropper post means you'll quickly be able to move the saddle out of the way for big drops and descents.
Browse our range of Trek electric mountain bikes today.
Highlights
- Trek Alpha Platinum Aluminium frame, 150mm travel
- RockShox 35 Gold R 160mm travel fork
- Bosch's new smart system gives you all the same power and responsiveness with a new Bluetooth-connected LED remote and eBike Flow app that puts even more control and customisation at your fingertips
- Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly - it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools and lets you mount a water bottle cage
- The bigger battery means you can adventure for longer between charges
- Made with the same hard-charging frame tech as Slash, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness and Active Braking Pivot (ABP)
- Shimano Deore-mix, 1x12 drivetrain with a wide gear range so you can always find the ideal cadence
- 29" wheels and Bontrager XR4 Comp tyres
Battery Specification
- Rider Amplification: 340%
- Motor Weight: 2.9kg (approximate)
- Battery Power: 625Wh
- Charge Time: 5.5 hours
Technical Specification
| Frame | Trek Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, magnesium rocker link, Motor Armour, Mino Link, ABP, Boost148, 12mm thru-axle, 150mm travel (curved top tube - size small) |
| Fork | RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm Maxle Stealth, 160mm travel |
| Shock | RockShox Deluxe Select+ RT, 230mm x 57.5mm |
| Stem | Bontrager Rhythm Comp, 31.8mm, Knock Block, 0°, 50mm length |
| Handlebar | Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Front Brake | Tektro HD-M745 4-piston hydraulic disc / Tektro, 6-bolt, 203mm rotor |
| Rear Brake | Tektro HD-M745 4-piston hydraulic disc / Tektro, 6-bolt, 203mm rotor |
| Brake Levers | Tektro |
| Rear Derailleur | Shimano Deore M6100, long cage |
| Shift Levers | Shimano Deore M6100, 12-speed |
| Chain | Shimano Deore M6100 |
| Cassette | SunRace CSMZ800 11-51, 12-speed |
| Crankset | E*thirteen E*spec Plus, 34T, 165mm length |
| Front Wheel | Rim - Alex MD35, tubeless compatible, 32-hole, 35mm width, Presta valve / hub - Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru-axle |
| Rear Wheel | Rim - Alex MD35, tubeless compatible, 32-hole, 35 mm width, Presta valve / hub - Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru-axle |
| Front Tyre | Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60", clincher |
| Rear Tyre | Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60", clincher |
| Saddle | Bontrager Arvada, steel rails, 138mm width |
| Seatpost | TranzX JD-YSP18, 100mm travel (S) / 130mm travel (M-XL), internal routing, 31.6mm, 361mm length (S) / 425mm (M-XL) |
| Pedals | Available to be purchased separately |
| Motor | Bosch Performance Line CX, 85Nm |
| Remote | Bluetooth LED |
| Battery | Bosch PowerTube 625Wh, smart system |
| Charger | Bosch standard 4A, 230V, smart system |
| Electric Assisted Speed Limit | 15.5mph / 25km/h |
| Maximum Weight | 136 kg / 300 lb (combined weight of bicycle, rider and cargo) |
| Manufacturer Claimed Weight | 21.30 kg / 46.96 lbs (excluding battery) (size medium) |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.