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.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Trek Rail 9.9 Electric Mountain Bike 2021
Explore off the beaten track with the Trek Rail 9.9 Electric Mountain Bike, crafted from lightweight OCLV Mountain Carbon and kitted out with all the goods for optimal off-road adventuring. This is a top-end e-MTB hungry for trails, complete with RockShox's ZEB Ultimate fork with chunky 38mm stanchions, and loaded with 160mm of travel to tackle all-mountain terrain. The Bosch Performance CX motor provides up to 250W of assistance to aid tough climbs, and ticks up to 25 km/h should speed be needed. This motor is compact, efficient and light to encourage a natural sensation when pedalling and minimal drag when not, and the Bosch PowerTube 625 battery is entirely charged in under 5 hours with a standard charger should you wish to plan for a ride in advance. Trek's Removable Integrated Battery system is intuitive for easy, tool-free removal when a charge is needed, and well hidden within the frame during use - leaving space for a bottle cage to be mounted too.
Should angles and geometry need refining, the Mino Link enables these to be fine tuned to best fit rider preference. SRAM X01 12-speed components make quiet, clean shifting a cinch, with a multitude of gearing options to suit flowing undulations and steep gradients, and they're tough enough to tackle no-holds-barred trail use. SRAM Code RSC hydraulic disc brakes are responsive for rapid stopping so descents can be handled with improved confidence, making this bike good clean fun on every ride. Seriously good components elevate this bike to new, off-road conquering heights.
Browse our range of Trek electric mountain bikes today.
Battery Specification
- Maximum assist: 250w
- Motor weight: 2.9kg
- Battery Power: Approximately 625Wh
Highlights
- Trek OCLV Mountain Carbon frame with RIB
- RockShox ZEB Ultimate DebonAir spring fork with 160mm of travel
- SRAM X01/XX1 Eagle 12-speed components
- SRAM Code RSC hydraulic disc brakes
- 29” wheels with 2.60” tubeless-ready tyres
- Bontrager Line Elite Dropper seatpost gets the saddle out of the way quickly
- Bosch Performance CX 250W motor
- Bosch PowerTube 625 battery
Technical Specification
| Frame | Trek OCLV Mountain Carbon main frame and stays, Removable Integrated Battery (RIB), tapered head tube, Knock Block, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru-axle, 150mm travel |
| Fork | RockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimised crown, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel |
| Rear Shock | RockShox Super Deluxe Ultimate RT3, DebonAir spring, Thru Shaft 3-position damper, 230x57.5mm |
| Headset | Trek Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree |
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise |
| Grips | Bontrager XR Trail Elite, alloy lock-on |
| Front Brake | SRAM Code RSC hydraulic disc |
| Rear Brake | SRAM Code RSC hydraulic disc |
| Brake Levers | SRAM Code RSC |
| Rear Derailleur | SRAM X01 Eagle |
| Shift Levers | SRAM X01 Eagle, 12-speed |
| Chain | SRAM XX1 Eagle, 12-speed |
| Cassette | SRAM XG-1295 Eagle, 10-52, 12-speed |
| Crankset | E*thirteen E*spec Race carbon, 34T, 165mm crank length |
| Front Wheel | Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110 |
| Rear Wheel | Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, SRAM XD driver, Boost148 |
| Front Tyre | Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29x2.60" clincher |
| Rear Tyre | Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29x2.60" clincher |
| Saddle | Bontrager Arvada, austenite rails, 138mm width |
| Seatpost | Bontrager Line Elite Dropper, internal routing, 31.6mm, travel - S 100mm / M 150mm / L/XL 170mm |
| Pedals | Trek VP-536 nylon platform |
| Charge time | 100% charge, 4.9 hours with Standard Charger |
| Motor | Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm, 25km/h |
| Ui/Remote | Bosch Kiox with Anti-theft solution |
| Battery | Bosch PowerTube 625 |
| Charger | Bosch standard 4A (220-240 V) charger |
| Weight Limit | Maximum total weight limit is 136kg (300lbs) (combined weight of bicycle, rider and cargo) |
| Manufacturer Claimed Weight | 22.42kg / 49.43lbs (with tubes, size M) |
| Electric assisted speed limit | 15.5 mph / 25 km/h |
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. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
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.
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".