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.
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 a top-of-the-line drivetrain, 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 Shimano XTR drivetrain, 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. RockShox's best enduro fork, Bosch's most powerful battery, latest motor, and full-color controller. Plus, you get the refined and super-smooth shifting of Shimano XTR.
Why you'll love it
- 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
- The full-color 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 to 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)
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.
Due to supply-chain issues, Specs are subject to change without notice.
|Motor||Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm|
|Battery||Bosch PowerTube 625|
|Display||Bosch Kiox with Anti-theft solution|
|Max Assisted Speed||20mph / 32km/h|
|Charger||Bosch standard 4A (100-240V) charger|
|Frame||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|
|Fork||RockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimzed crown, tapered steerer, 44mm offset, 15mm Maxle Stealth, 170mm travel|
|Headset||Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom|
|Rear Shock||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
|Rims/Wheels||Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub|
|Tires||Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29 x 2.60''|
|Crankset||E*thirteen E*spec Race carbon, 165mm length|
|Chain||Shimano XTR M9100, 12 speed|
|Rear Derailleur||Shimano XTR M9100, Shadow Plus, long cage, 51T max cog|
|Cassette/Rear Cogs||Shimano XTR M9100, 10-51, 12 speed|
|Shifters||Shimano XTR M9100, 12 speed|
|Handlebars||Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width|
|Tape/Grips||Bontrager XR Trail Elite, alloy lock-on|
|Stem||Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length|
|Brakes||Shimano XTR M9120 4-piston hydraulic disc, w/Shimano RT86, 203mm, 6-bolt rotors|
|Pedals||VP-536 nylon platform|
|Saddle||Bontrager Arvada, austenite rails, 138mm width|
|Seat Post||Bontrager Line Elite Dropper, internal routing, 31.6mm; Small: 100mm travel; Medium: 150mm travel; Large – X-Large: 170mm travel|
* Subject to change without notice.