Electric mountain bike parked on a grassy field with a forest backdrop.

Understanding the Three Classes of E-Mountain Bikes

Which e-mountain bike class suits your riding style?

So, there is this dude who whips by my house, twice a day, on his e-mountain bike. 

My assumption is that he is commuting to work in an economical fashion (BTW – well done, my man).  The reason that I even notice him, my road is a hilly and windy road that is used by road bikers all the time, is that he appears to be moving at near cruise-missile speed on his bike!   Being new to the e-bike world, I wanted to know how he goes so fast.

Now, I mostly stumbled my way into e-mountain biking, which is one of the reasons that I created this website – so that you can make the best decisions on YOUR choice of bike.  I was lucky in that I purchased my Cannondale Moterra 2 unseen, and I love it.  My decision was almost entirely based on my budget, it is full suspension, and the fact that it has a solid reputation for doing the things that I want to do with it – 95% trail riding in the Southeast. 

I didn’t realize that there were different CLASSES of e-bikes, with different purposes.  Had I gone with the cruise-missile of a bike I see on my road every day, I might have found out that I was unwelcome at some of my favorite trails! 

With that in mind, let’s explore the three classes of e-mountain bikes, weighing the pros and cons of each, and then I’ll provide a brief guide to help you choose the right class for your needs.

Let’s roll!

The Three Classes of E-Mountain Bikes

Class 1: Pedal-Assist Only

Class 1 e-mountain bikes, like my Moterra, are equipped with a motor that provides assistance only when you are pedaling. The motor stops providing assistance when the bike reaches 20 mph (32 km/h). These bikes are often referred to as “pedal-assist” or “pedelec” bikes.  As a side note, you CAN go faster than 20 MPH, I’ve had mine up to 23 MPH, but it’s all on you.

Pros:

  • Legal on most bike paths and trails.
  • Feels more like traditional mountain biking with added help.
  • More affordable than higher-class e-mountain bikes.

Cons:

  • Limited to a maximum speed of 20 mph with motor assistance.
  • Less powerful motor compared to Class 3 bikes.
  • Not always the best choice, if primarily used as a commuter bike.

Class 2: Throttle-Assist

Class 2 e-mountain bikes come with a throttle that can propel the bike without the need to pedal, although they also offer pedal-assist mode. Just like Class 1, the motor assistance cuts off at 20 mph (32 km/h).

Pros:

  • Provides assistance without the need to pedal, which can be helpful in certain situations.
  • Versatile with the option to use pedal-assist or throttle mode.

Cons:

  • Less range compared to pedal-assist only bikes due to throttle usage.
  • May be heavier and potentially less efficient due to the added throttle mechanism.
  • May not be allowed on some bike paths and trails.

Class 3: Pedal-Assist with Higher Speed

Class 3 e-mountain bikes, also known as “speed pedelecs,” provide pedal assistance up to 28 mph (45 km/h).  This may not sound that fast, but it is 40% faster than a Class 1 or 2!  This is what the commuter-dude on my road rides.  These bikes do not have a throttle and rely solely on pedal-assist mode.

Pros:

  • Higher top speed, allowing you to cover more ground quickly.
  • Powerful motor for tackling steep climbs and rough terrain.
  • More efficient for long-distance rides.

Cons:

  • May be restricted on certain bike paths and trails due to their higher speed.
  • Generally, more expensive than Class 1 and Class 2 bikes.
  • Requires more maintenance due to the higher power output.

Choosing the Right E-Mountain Bike Class

Selecting the right class of e-mountain bike depends on your riding preferences, local regulations, and the type of terrain you plan to conquer. Here’s a short guide to help you make an informed decision:

1. Consider Your Riding Style:

  • If you enjoy a more traditional mountain biking experience with a bit of extra help, Class 1 might be the ideal choice.
  • If you prefer having the option to use a throttle for quick bursts of speed or big hills, consider Class 2.
  • If speed and power are your main priorities, or if you plan on hauling a lot of weight, Class 3 could be the best fit.

2. Check Local Regulations or Ask Your Local Bike Shop:

  • Before purchasing, ensure that the class of e-mountain bike you choose is allowed on your favorite trails and bike paths.
  • Some areas have specific restrictions on the use of Class 2 and Class 3 e-mountain bikes.

3. Think About Your Budget:

  • Class 1 bikes are generally the most affordable option, while Class 3 bikes tend to be more expensive.
  • Consider the long-term costs, including maintenance and potential upgrades.

4. Intended Use:

  • If you’re going to be commuting, in traffic, with some occasional off-road fun – a Class 2, with its throttle, or a Class 3’s powerful motor might be your ride.
  • For straight up Mountain Biking, I feel that the only legit way to go is a Class 1.

5. Test Ride:

  • Whenever possible, test ride different classes of e-mountain bikes to get a feel for what suits you best.
  • Pay attention to the bike’s handling, power delivery, and overall comfort.

Conclusion

I don’t know about you, but this all makes me think of the scene in “Indiana Jones and the Last Crusade”, when the antagonist drinks water from the wrong cup.  Mistakenly thinking it’s the Holy Grail, and assuming he will get to live forever, he takes a big gulp of water… and proceeds to age and die a grizzly death within seconds.  A stern-faced knight, guardian of the grail calmly says, “He did not choose wisely.”

If you are going to spend several thousand dollars on an E-mountain bike, it is well worth taking the time to really think about how you are going to use it.  By understanding the differences between Class 1, Class 2, and Class 3 e-mountain bikes, you can make an informed decision that aligns with your riding style, needs, and local regulations. Which e-mountain bike class suits your riding style? Let me know what you decided, I’d love to hear from you!

Happy riding, and “choose wisely”.