Rail 9.9 is a long-travel electric mountain bike built for ultimate trail performance. The light OCLV Mountain Carbon frame features an awesome RockShox suspension setup, a full Shimano XTR drivetrain and the best e-MTB drive system on the market. It'll shred right alongside the enduro crowd, but the best part is that you'll always beat them up the climbs and get in the most runs.

You?re looking for a seriously capable long-travel carbon e-MTB and you want nothing but the best. Your bike had better have a top-of-the-line drivetrain, a high-end suspension setup and a powerful Bosch system that?ll fly up grinders in a flash.

A light and durable OCLV Mountain Carbon main frame with carbon stays that fully encases a 625 Wh battery for sleek looks and protection on the trail, a 160 mm RockShox Lyrik Ultimate fork with Charger 2 RC2 damper, 150 mm of rear travel with a RockShox Deluxe RT3 shock with Trek's RE:aktiv with Thru Shaft damper, a powerful new Bosch Performance Line CX 250 W motor that assists up to 25 km/h and a Kiox controller. A 1x12 Shimano XTR drivetrain, Bontrager Line Elite dropper post, 4-piston brakes, a carbon handlebar and Bontrager Line Carbon 30 29er wheels with Bontrager SE5 Team Issue tyres.

Rail 9.9 is all about top performance tech. RockShox's best enduro fork, Bosch's most powerful battery, latest motor and full-colour controller. Plus, the light OCLV Mountain carbon frame is trimmed with lots of carbon parts, including the wheels and crank.
- The new, better-than-ever Bosch motor is smaller, lighter and more efficient. It feels more natural while you?re pedalling, and has less drag when you?re not
- The full-colour Bosch Kiox controller displays ride info, connects with your Bluetooth® enabled devices and has a built-in theft prevention feature
- RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
- 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 remove the battery without tools and lets you mount a water bottle cage
- Made with the same exclusive frame tech as Remedy and Slash, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness and Active Braking Pivot (ABP)

New Bosch Performance Line CX
The all-new Bosch Performance Line CX motor is lighter, smaller and quieter than previous versions, for cleaner integration and more nimble handling. It?s also more efficient so you can go further on a single battery charge. Use the intelligent eMTB mode to automatically adjust the amount of assist to match the terrain. It?s a set-and-forget mode that delivers just the right amount of power so you can focus on enjoying the ride.

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.

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.

OCLV Mountain Carbon
Trek's mountain-specific carbon fibre is tougher carbon, with unique materials and lay-up procedures, Trek's advanced engineering, and a higher standard of testing.

What is the range?
To see how far you can ride your electric mountain bike on a single charge, check out Bosch?s range calculator. We?ve auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.