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You’re looking for a trail-specific e-MTB that’s designed to tackle the same tough terrain as regular trail bikes. You already know just how awesome e-MTBs are on the mountain, and want to invest in better components.

The tech you get

A burly alloy frame with 150mm of rear travel that fully encases a 625Wh battery, a 160mm RockShox Yari RC fork, a powerful new Bosch Performance Line CX 250W motor that assists up to 20 mph, and a Purion controller. A smooth-shifting 1x12 Shimano SLX/XT drivetrain, dropper post, powerful Shimano 4-piston brakes for confident descents, and Bontrager Line Comp 30 29er wheels that are already completely tubeless ready, including sealant.

The final word

Rail 7 features loads of upgraded parts, including the drivetrain, fork, and wheels. But the biggest deal is that it comes with the longest-range Bosch battery you can get. That means more runs and more fun.

See it in action

favorite_borderWhy you'll love it

  1. 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
  2. Rail shreds just as hard as its non-electric brethren, plus it powers you right back up the mountain—no shuttle or lift necessary
  3. The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
  4. 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)
  5. 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 remove the battery without tools and lets you mount a water bottle cage

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Features

New Bosch Performance Line CX

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 farther 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.

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.

Watch video

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.

Learn more

Knock 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

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.

Calculate your range

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
Fork RockShox Yari RC, DebonAir spring, Motion Control RC damper, e-MTB optimized, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
Shock RockShox Deluxe Select+, 230x57.5mm
Wheels
Front wheel Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Rear wheel Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
Front hub Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear hub Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
Rear skewer Bontrager Switch thru axle
Tire Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.60''
Drivetrain
Shifter Shimano SLX M7100, 12 speed
Rear derailleur Shimano XT M8100, long cage, 51T max cog
Crank arm E*thirteen E*spec Plus, 34T, 165mm length
Cassette Shimano SLX M7100, 10-51, 12 speed
Chain Shimano SLX M7100, 12 speed
Pedal VP-536 nylon platform
Components
Saddle Bontrager Arvada, steel rails, 138mm width
*Seatpost Size: S
TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
Size: M, L, XL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
Handlebar Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 780mm width
Grips Bontrager XR Trail Comp, nylon lock-on
Stem Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length
Brake rotor Shimano RT76, 203mm, 6-bolt
Weight
Weight M - 23.59 kg / 52.00 lbs (with tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

Sizing & fit

The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise noted.

Frame size number Frame size letter Geometry position Wheel size A — Seat tube Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack Stem length
15.5 S High 29" 41.0 75.0° 10.5 64.9° 58.7 34.4 2.9 44.7 4.3 12.7 119.5 74.8 42.5 62.3 4.0
15.5 S Low 29" 41.0 75.0° 10.5 64.5° 58.8 33.9 3.5 44.8 4.3 13.1 119.6 74.3 42.0 62.6 4.0
17.5 M High 29" 42.0 75.0° 10.5 64.9° 61.1 34.4 2.9 44.7 4.3 12.7 122.0 77.8 45.0 62.2 5.0
17.5 M Low 29" 42.0 75.0° 10.5 64.5° 61.3 33.9 3.5 44.8 4.3 13.1 122.1 77.3 44.5 62.6 5.0
19.5 L High 29" 45.0 75.0° 11.0 64.9° 63.3 34.4 2.9 44.7 4.3 12.7 124.3 76.7 47.0 62.7 5.0
19.5 L Low 29" 45.0 75.0° 11.0 64.5° 63.4 33.9 3.5 44.8 4.3 13.1 124.3 76.2 46.5 63.0 5.0
21.5 XL High 29" 50.0 75.0° 12.0 64.9° 66.5 34.4 2.9 44.7 4.3 12.7 127.7 78.0 49.9 63.6 5.0
21.5 XL Low 29" 50.0 75.0° 12.0 64.5° 66.6 33.9 3.5 44.8 4.3 13.1 127.8 77.5 49.5 63.9 5.0

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