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, the latest wireless electronic drivetrain tech, 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.
It's right for you if...
You’re looking for a long-travel carbon e-MTB and you want nothing but the best. Your bike better have wireless electronic components, a high-end suspension setup, and a powerful Bosch system that’ll fly up grinders in a flash.
The tech you get
An OCLV Mountain Carbon frame that fully encases a 625Wh battery, a super responsive RockShox ZEB Ultimate fork with extra-burly 38mm stanchions and loads of adjustability, a RockShox Super Deluxe Ultimate shock with an updated Thru Shaft damper, a Bosch Performance Line CX 250W motor that assists up to 20 mph, and a Kiox controller. A SRAM GX Eagle drivetrain with an extra-low 52-tooth climbing gear, downhill-rated 4-piston brakes for unflinching descents, a RockShox Reverb AXS dropper post, and new Bontrager Line Pro 30 carbon wheels with robust SE5 Team Issue tires that come completely tubeless ready, including sealant.
The final word
Rail 9.9 is all about top-shelf tech. It has the latest wireless electronic components, RockShox's best enduro fork, and Bosch's most powerful battery and full-color controller.
Why you'll love it
- The SRAM X01 Eagle AXS drivetrain is smart, smooth, and completely wireless
- The full-color Bosch Kiox controller displays ride info, connects with your Bluetooth enabled devices, and has a built-in theft prevention feature
- The new, better-than-ever Bosch motor is smaller, lighter, and more efficient. It feels more natural while you’re pedaling, and has less drag when you’re not
- 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 to remove the battery without tools and lets you mount a water bottle cage
A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.
Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.
Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.
Wider than standard yet narrower than fat, plus-size rims and tires hit the sweet spot in grip, stability, and speed, giving you more confidence on technical terrain. Compared to a standard tire you’ll feel grip in places you wouldn’t expect thanks to a bigger contact patch and greater rollover clearance. More air volume allows lower tire pressures which softens bumps and increases float on sand or snow. Whether you’re a novice or an expert, the benefits of plus-size tires and rims will amplify your mountain biking fun.
Electronic drivetrain systems deliver excellent shifting, easy set up, and solid battery life. Here are the highlights of today’s electronic shifting systems:
Electronic shifting systems use powerful servomotors to rapidly shift the chain. Because microprocessors and sensors constantly monitor every aspect of the system, they shift with precisely and without chain rub.
Many major systems have customizable shifting. Some have the ability to add remote shifters for common riding positions, and some even allow you to change the functions of the shifting buttons.
Electronic groupsets are responsive and consistent. There are no cables to stretch and wear out, so you get a flawless shift every time. The added bonus is you’ll never have to replace a derailleur cable ever again.
Due to supply-chain issues, Specs are subject to change without notice.
|Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm
|Bosch PowerTube 625
|Bosch Kiox with Anti-theft solution
|Max Assisted Speed
|20mph / 32km/h
|Bosch standard 4A (100-240V) charger
|OCLV Mountain Carbon main frame, Removable Integrated Battery (RIB), tapered head tube, Knock Block, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, 150mm travel
|RockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimzed crown, tapered steerer, 44mm offset, 15mm Maxle Stealth, 170mm travel
|Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
|NEW RockShox Super Deluxe Ultimate RT3, DebonAir spring, Thru Shaft 3-position damper, 230x57.5mm
Front: 110 x 15mm thru-axle
Rear: 148 x 12mm thru-axle
|Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver
|Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29 x 2.60''
|E*thirteen E*spec Race carbon, 165mm length
|SRAM XX1 Eagle, 12 speed
|SRAM X01 Eagle AXS
|SRAM XG-1295 Eagle, 10-52, 12 speed
|SRAM Eagle AXS, wireless, 12-speed
|Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
|Bontrager XR Trail Elite, alloy lock-on
|Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
|SRAM Code RSC hydraulic disc w/SRAM CenterLine, 6-bolt, round-edge, 200mm rotors
|VP-536 nylon platform
|Bontrager Arvada, austenite rails, 138mm width
|RockShox Reverb AXS; Small: 100mm travel; Medium: 150mm travel; Large – X-Large: 170mm travel
* Subject to change without notice.