Trek Rail Review

trek rail review

Trek Rail Review

Although being one of the most amusing outdoor sports, mountain biking is no child’s play. If you’re considering getting into mountain e-biking, you need a tough, durable machine to get you through hard environmental conditions.  Check our Trek Rail Review! And to see all our e-MTB reviews, just click here!

Adapting the powerful motor and battery systems by Bosch, the Trek Rail is built to tackle the toughest terrains. We revealed the pluses and minuses of this e-bike in this review. Before discovering its features, let’s take a look at its key specs.

Key Features
Max Speed20 mph
MotorBosch Performance CX, Magnesium Motor Body, 250-Watt, 75 Nm
BatteryBosch PowerTube 625
FrameAlpha Platinum Aluminum, Removable Integrated Battery With A Tapered Head Tube
Tire SizeBontrager XR5 Team Issue, Tubeless Ready, 29×2.60”
BrakesShimano Hydraulic Disc, MT501 Lever


By appearance, the Trek Rail is more charming compared to most of the e-bikes of this type. Combining the yellow and teal colors, the frame has a flawless look. But it’s not the best thing about the frame. The strong alpha platinum aluminum material the frame consists of is ideal in tackling the hardest terrains.

The Removable Integrated Battery (RIB) is located in the frame, which completely hides the battery inside the down tube, meaning that you have a lot of room for a water bottle cage.

Trek’s geometry is adjustable thanks to the construction of the frame. This means that the BB height and head tube angle can be adjusted according to your needs without affecting the performance of the suspension. You can also adjust how the suspension of your e-bike reacts to braking and acceleration thanks to the patented feature called the Active Braking Point.

To contribute in reducing the standover height of Trek Rail, the frame’s top tube dives towards the seat post. This is also ideal for short riders to mount the e-bike without an effort. And the ergonomic Bontrager XR Rail comp grips provide extra comfort during your ride.

In handling the challenging trails, the Trek Rail is as talented as a traditional mountain bike. Combining lightweightness and strength, the Trek Rail is capable of carrying rider weights up to 300 pounds. We should also note that the Trek Rail comes in four different frame sizes, so it will fit any rider heights from 5’.2” to 6”5”.

We should add a little minus here, which is the TranzX dropper seat post at only 130mm. Pretty short for a “Large” frame size.

Tires and Rims

The Trek Rail rolls on the 29-inch Bontrager XR5 tires, providing both speed and ground with the least effort from you. However, the tires fail to deliver good traction while passing corners. So watch your handling during loose surfaces as well as sharp turns.

The tires are combined with the durable Bontrager Line Comp 30 29″ tubeless-ready wheelset. They provide comfort and stability even if you’re on the e-bike all day long.


The Rail is powered by the Bosch Performance Line CX motor of 250W, capable of taking you to up to 20 mph of top speed. The new CX is both lighter and smaller compared to its previous versions, ideal for smart handling, clear integration and boosted efficiency, which means longer range.

The motor can generate 75Nm torque which is more than enough for climbing steep slopes effortlessly. The mid-drive motor is low and centre-located, also contributing to the stability and weigh-balancing of the e-bike.

trek rail review 2 1
trek rail review 2 1

The motor is controlled via an automatic Purion display located on the handlebar. Although being a little huge, the controller is user-friendly. It also has an intelligent eMTB mode to automatically adjust the power according to the terrain. It also contributes to using the battery power efficiently, so all you have to do is focus on the road!


The Rail sports Shimano MT-520 four-piston hydraulic disc brakes with 200mm rotors to ensure high performance in braking in all kinds of weather conditions. You will ride confidently even on loose trails. What’s more, even with a slight pull, the responsive brake levers will stop the ride.


The Bosch PowerTube 625Wh battery supports the Bosch Performance CX motor. Located into the down tube, the battery is secured from any kind of dirt from the trail. The battery has a long range to fulfil your expectations from an e-MTB. It can be charged from the external charging port, both while on and off the bike.

The removal and re-installing of the battery is easy as you just have to pull it out to the side to remove, even with the help of the integrated handle.

To conclude

The sleek design of the Trek Rail is outstanding even from a distance. The functional Removable Integrated Battery system provides easy battery removal and installation.

The riding geometry of the Trek Rail is impressive as Mino Link adjustable geometry allows fine-tuning the BB height and head tube angle. And the suspension performance doesn’t get affected at all. 

The updated Bosch Performance Line CX motor is small, light and quiet. But it doesn’t fail you in any aspect regarding the performance and range. The “hidden” 625Wh battery impressively offers great range. to power your ride for as long as you want. It’s certain that you’ll have your fun on the mountains for a long time. 

When it comes to the downside, we should note that the corners and low speeds challenge the Trek Rail in terms of stability as the tires lack in offering enough traction at these times. And lastly, tall riders may not be that comfortable with a seat post of this height.

Advantages: Trek Rail Review

  • Adjustable geometry
  • Removable Integrated Battery
  • Active Braking Point technology
  • Tubeless-ready rims and tires
  • Light yet strong Bosch motor

Disadvantages: Trek Rail Review

  • Short seat post
  • Reduced traction on while handling corners

The Trek Rail comes with various features that will bring your adventure quality and comfort. Thanks to the high technology used in the Trek Rail, you’ll get your fun time on the mountains.

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