2025 TREK Rail+ 9.9 XO AXS Slate
The Rail+ 9.9 is our top carbon enduro e-MTB made for your most epic adventures. Its robust OCLV Mountain Carbon frame packs 160 mm of front and rear travel from a RockShox Super Deluxe Ultimate shock and ZEB Ultimate fork for crushing mind-boggling descents. SRAM's X0 Eagle AXS transmission gives you intensely-smooth wireless shifting on even the punchiest climbs, while SRAM Maven Silver 4-piston brakes provide incredible stopping power. It's topped off with a RockShox Reverb AXS wireless dropper post and OCLV Carbon Bontrager Line Pro 30 wheels.
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Barcode | 197216101048
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Trek Rail+: Go Big on Every Adventure
The Rail+ is a versatile enduro e-MTB designed for your biggest mountain adventures, offered in both high-performance carbon and high-value alloy frames. With 160 mm of front and rear travel, it is built to charge through the roughest terrain, while the powerful Bosch Performance CX drive system and massive battery make long climbs and fast laps effortless. Whether you choose the lightweight OCLV Mountain Carbon of the 9.7 or the rugged Alpha Platinum Aluminium of the 5, the Rail+ features adjustable geometry to customize your ride and a reliable Shimano 12-speed drivetrain for crisp shifting across long miles. Rounded out with tubeless-ready Bontrager wheels and a dropper post, the Rail+ is ready to rip through any trail you throw its way.

Bosch Performance Line CX motor
Bosch Performance Line CX sets the standard for eMTB performance with 85 Nm of torque out of the box, but can be tuned all the way up to 100 Nm and 750 W of power using the Bosch eBike Flow app. The Bosch smart system also has intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
New RIB 2.0
Removable Integrated Battery (RIB 2.0) makes it easy to remove your battery for more convenient charging or travelling, and you don’t have to worry about dropping it thanks to a secondary safety catch.


New RIB 2.0
Removable Integrated Battery (RIB 2.0) makes it easy to remove your battery for more convenient charging or travelling, and you don’t have to worry about dropping it thanks to a secondary safety catch.

Bosch Mini Remote
The compact, ergonomic Mini Remote lets you easily change assist level, activate Walk mode, or turn on optional lights, all without moving your hand off the handlebar. Plus, it's wireless and connects with your System Controller via Bluetooth
Mixed wheel size
You get a 29" front wheel for monster truckin' over stuff, with a smaller 27.5" wheel out back for getting rowdy.


Mixed wheel size
You get a 29" front wheel for monster truckin' over stuff, with a smaller 27.5" wheel out back for getting rowdy.

Adjust the suss for full send
Adjust the leverage rate with just a flip of a chip. Ride it in the Less progressive setting for a plusher feel perfect for rugged trails with square-edge bumps. Flip it to More progressive when you're hitting big features and don’t want to bottom-out, or when you want to run a coil shock.
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.


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.

Shimano Deore
Shimano Deore brings even more adventure with a wider range of gear choices for the steep stuff, the fast stuff, and the fun. With smooth riding, improved chain stability, and sharp shifting, Deore heightens your mountain biking confidence and control so you can focus on the trail and enjoy the ride.
Meet Rail+
Shop Rail+
| Front Wheel Block | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle |
|---|---|
| Model | RAIL + 9.9 |
| Battery | Bosch PowerTube 800 Wh, smart system |
| Frame | OCLV Mountain Carbon main frame |
| Fork | Rockshox ZEB Ultimate, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 160 mm travel |
| Shock | RockShox Super Deluxe Ultimate RC2T, 205x65 mm |
| Rear wheel | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12 mm thru-axle |
| Tyre | Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi |
| Tupe part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Shifter | SRAM AXS POD |
| Rear deraileur | SRAM X0 Eagle AXS, T-Type |
| Crank | SRAM X0 Eagle, 160 mm length |
| Cassette | SRAM Eagle XS-1295, T-Type, 10-52, 12-speed |
| Chain | SRAM X0 Eagle, T-Type, 12-speed |
| Pedals | VP-536 nylon platform |
| Saddle | Verse Short Comp, steel rails, 145 mm width |
| Seatpost | RockShox Reverb AXS, 175 mm travel, wireless, 34.9 mm |
| Handdlebar | Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 780 mm width |
| Grips | Bontrager XR Trail Elite, nylon lock-on |
| Stem | Bontrager Line Pro, 35 mm, Blendr-compatible, 0-degree, 45 mm length |
| Headset | Integrated cartridge bearing, 1-1/8" top, 1.5" bottom, angle adjust cup compatible |
| Brakes | SRAM Code Silver 4-piston hydraulic disc |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
| Bike weight | M – 23.98 kg/52.87 lb (with TLR sealant, no tubes) |
| Motor | Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC) |
| Controller | Bosch System Controller BRC3100, smart system |








