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'One of the best"
'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.'
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'Trek has really gone all out with this bike'
'My first thought about the Rail 9.9 is how it resembles a new school American muscle car, with a ton of carbon fibre 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.'
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Best in Class winner!
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.
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'Our e-bike of the Year'
'Rail dominates the descents and flattens the climbs… it’s every bit as potent as the Slash, but with its own built-in uplift.'
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'Sets the bar'
'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.'
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‘E-MTB dominance’
‘One of the best all-rounders in the test. This tuxedo-looking bike symbolises class and intention with a big win on battery life.’
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Which generation is right for you?
Go Rail Gen 4 for minimalist smart system compatibility, Gen 3 for a smart system with visible control at the bars or Gen 2 for a legacy Bosch system that saves your wallet.
Learn moreService manual
Time to get 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 hereGet faster on the trail in a week
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 PRs and riding with more confidence in no time.
Read moreMinimum days, maximum fun
With just one week to road trip through British Columbia, two Trek big mountain riders decided to think outside the box.
Watch the videoProduct features
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.
Custom eMTB Lite mode
Trek eMTBs feature a custom eMTB Lite mode in place of Tour mode. It gives you more natural-feeling power delivery and longer battery life.
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.
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.
Suspension Calculator
This suspension calculator will help you optimise your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Learn moreMino Link adjustable geometry
Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.
Integrated speed sensor
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.
Bosch Purion Display
Bosch's Purion display features a fully-functional speedometer with a backlit display, service interval indicator and battery range indicator. Its thoughtful design allows riders to scroll through functions or choose the right level of support while maintaining contact with the handlebars.
ABP
Our patented Active Braking Pivot allows your suspension to work freely whether you’re on the brakes or off. It’s smooth, controlled suspension that’s at its best all the time.
Learn moreKnock Block
Knock Block has your frame's back when things go wrong. It prevents your handlebars from spinning all the way around in a crash, so your hoses won't get yanked and your controls won't hit the top tube.
Learn more| Frame | OCLV Mountain Carbon main frame, Removable Integrated Battery (RIB), tapered head tube, Knock Block, Control Freak internal routing, magnesium rocker link, Motor Armour, Mino Link, ABP, Boost148, 12 mm thru axle, 150 mm travel |
|---|---|
| Fork | RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm Maxle Stealth, 160 mm travel |
| Shock | RockShox Deluxe Select+, 230 mm x 57.5 mm |
| Max compatible fork travel | 170mm (580mm axle-to-crown) |
| Hub front | Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
|---|---|
| Hub rear | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Rim | Alex MD35, tubeless compatible, 32-hole, 35 mm width, Presta valve |
| Spokes | 14 g stainless steel, black |
| Tyre | Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60" |
| Max tyre size | Frame: 29x2.60", Fork: See manufacturer |
| Battery | Bosch PowerTube 625 Wh |
|---|---|
| Charger | Bosch compact 2A, 100–240V |
| Shifter | Shimano Deore M6100, 12-speed |
|---|---|
| Rear derailleur | Shimano Deore M6100, long cage |
| Crank | E*thirteen E*spec Plus, 165 mm length |
| Chainring | E*thirteen, 34T, steel |
| Cassette | Shimano Deore M6100, 10-51, 12-speed |
| Chain | Shimano Deore M6100, 12-speed |
| Pedal | VP-536 nylon platform |
| Max. chainring size | 1x: 34T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *Seatpost |
Size:
S TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length |
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Size:
S Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length |
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Size:
M, L, XL TranzX JD-YSP18, 130 mm travel, internal routing, 31.6 mm, 425 mm length |
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Size:
M, L, XL Bontrager Line Dropper, 125 mm travel, internal routing, 31.6 mm, 395mm length |
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| Handlebar | Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Stem | Bontrager Rhythm Comp, 31.8 mm, 0-degree, 50 mm length |
| Brake | Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper |
| Brake rotor | Shimano RT76, 6-bolt, 203 mm |
| Weight | M - 23.87 kg / 52.63 lb (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |