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Watch Rob Rides EMTB put the new Rail with smart system through its paces both on and off the trail, and find out why he liked it so much that he had to have one!Watch the video
"Indeed the way it manages to balance big-hit compliance while still giving good pop is mighty impressive. Along with its stout chassis, long wheelbase and burly build kit, the Rail is capable of monster trucking its way down some pretty gnarly descents [...] the Bosch Performance CX Line motor is another key component to the Trek Rail’s all-round performance. In our experience, this is the best full-powered motor out there."Read more
"My first thought about the Rail 9.9 is how it resembles a new school American muscle car, with a ton of carbon fiber and lots of digitally integrated sensors, and as always, more power than its predecessor [...] If there was ever a bike that was ready for anything, the new generation of the Trek Rail 9.9 would be it."Read more
It was a close competition, but not much could match the Rail on every type of terrain. The Bosch system will get you up any trail and the geometry is as close to perfect as we have found for all-around riding.Read more
"Rail dominates the descents and flattens the climbs…it’s every bit as potent as the Slash, but with its own built-in uplift."Read more
"Whether flowing or technical, it literally glides by the competition like it's on rails while also offering plenty of comfort for long days in the saddle."Read more
"One of the best all-rounders in the test. This tuxedo-looking bike symbolizes class and intention with a big win on battery life."Read more
Go Rail Gen 4 for minimalist smart system compatibility, Gen 3 for smart system with visible control at the bars, or Gen 2 for a legacy Bosch system that saves your wallet.Learn more
Still have questions?Get answers
Time to bust out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values, and platform-specific tech instructions below.Get it here
When it comes to being a better trail rider, practice makes perfect. Get seven tips from Pinkbike’s Christina Chappetta that will have you setting PR's and riding with more confidence in no time.Read more
Everything you need (and nothing you don’t).Learn how
With just one week to road trip through British Columbia, two Trek big mountain riders decided to think outside the box.Watch the video
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.
Bosch Performance Line CX sets the standard for eMTB performance with up to 85Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
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
The System Controller gives you a quick overview of your assist mode and battery level without distracting you from the ride. It's integrated into the top tube so it's out of the way but still easy to see with LED indicators. It also connects to the eBike Flow app via Bluetooth for accessing ride stats and performing system updates.
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.
The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motor's assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. There's even handy features like navigation and service reminders.
Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.
Bosch's biggest battery for your biggest rides. PowerTube 750 delivers 20% more range and a long service life.
You've got one less detail to sweat with the integrated speed sensor. The chainstay-mounted sensor stays protected while the custom hub-mounted magnet stays secure—no more error codes from mis-aligned sensors.
Enjoy precise, lightning fast gear changes—even when shifting under load—with Eagle AXS wireless electronic drivetrains. They're water- and dust-proof, and the AXS App makes it easy to personalize your settings.
Bigger is better. The oversized seat tube diameter gives more support and strength for longer travel droppers, and allows for more robust, durable internals that work faster.
|OCLV Mountain Carbon main frame, 1.8'' lower head tube, Bosch System Controller compatible, Removable Integrated Battery (RIB), Knock Block 2.0, guided internal routing, 34.9mm seat tube, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
|RockShox ZEB Select+, DebonAir spring, Charger 3 RC2 damper, 1.8'' oversized tapered steerer, eMTB optimized crown, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
|RockShox Super Deluxe Select+ RT, 230mm x 57.5mm
|Max compatible fork travel
|170mm (580mm axle-to-crown)
|Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
|Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29''
|Bontrager Switch thru axle, removable lever
S, M, L, XL
Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
S, M, L, XL
Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
|Bontrager TLR sealant, 6oz
|Max tire size
|Frame: 29x2.60", Fork: See manufacturer
Bosch PowerTube 625Wh, smart system
M, L, XL
Bosch PowerTube 750Wh, smart system
|Bosch standard 4A, 110V, smart system
S, M, L, XL
Bosch System Controller BRC3100, smart system
S, M, L, XL
Bosch Mini Remote BRC3300, smart system, 22.2mm
|Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
|SRAM AXS POD
|SRAM GX Eagle AXS, T-Type
|SRAM GX, 160mm length
|SRAM XX T-Type, 34T, steel
|SRAM Eagle XS-1275, T-Type,10-52, 12 speed
|SRAM GX Eagle, T-Type, 12 speed
|VP-536 nylon platform
|Max chainring size
|Bontrager Arvada, austenite rails, 138mm width
Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length
Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length
Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length
|Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
|Bontrager XR Trail Elite, nylon lock-on
|Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 45mm length
S, M, L, XL
Knock Block Integrated, 67-deree radius, cartridge bearing, 1-1/8'' top, 1.8'' bottom
S, M, L, XL
Knock Block Integrated, cartridge bearing, 1-1/8'' top, 1.8'' bottom
|SRAM CODE Bronze 4-piston hydraulic disc
S, M, L, XL
SRAM 6-bolt, 200mm
S, M, L, XL
SRAM HS2, 6-bolt, 220mm
|Max brake rotor sizes - Frame: 200mm, Fork: see fork manufacturer
|M - 23.60 kg / 52.03 lbs (with TLR sealant, no tubes)
|This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).