Best Mountain Bike for Teenagers

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If you’re on a quest for the best mountain bike for teenagers, you’ve come to the right place. Your young adult is at an age where they want to test the limits of their skills while learning the finer details of mountain biking.

Your teen might already be a pro conquering the most challenging trails or a beginner getting to grips with mountain biking. Whatever the case, it’s crucial to get a suitable bike for their skill level.

The MTBs on this list strike a balance between quality and affordability. And if you don’t like what you see, you’re welcome to use the buyers guide after this article.

Comparison Chart

Diamondback Cobra 20
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Mongoose Argus ST & Trail
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Schwinn High Timber

Best Overall: Diamondback Cobra 20

The Cobra 20 is an introductory MTB for teens getting to grips with off-road biking. The bike features high-strength MTB steel that provides exceptional durability when teens test their limits.

The daring nature of budding youth will allow this bike to face adverse conditions without taking excessive damage. The steel frame of this bike will outlast your kid’s adolescence before it suffers significant wear and tear.

Shimano gears shifters are at the top end for gears, and this bike uses the 7-speed Revo Grip to change speed and effectively. The best mountain bike for teenagers will put the child’s safety first.

You’ll take comfort in the linear-pull brakes that stop on a dime. The bike is lightweight at 30lbs, which means better handling for challenging trails.

The bike is easy to assemble and ships with all the tools you need to set it up. The only components that might pose a problem are the derailleur and brakes – nothing a YouTube video can’t sort out.

Buyer beware: this bike is a 7-speed trigger shifter and not six, as stated by the manufacturer.


  • High-quality components
  • Easy to assemble
  • Suspension fork for stability in rough terrain
  • Reasonable price


  • Slightly on the heavy side
  • No pre-drilled holes for a water bottle

Best Premium: Mongoose Argus ST & Trail

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The Mongoose Argus is an MTB with fat tires built to conquer the trails and other terrains that regular MTBs dare to thread. Fat bikes like the Argus were solely designed for snow biking.

Still, current technology has improved the bike’s functionalities, making it faster, stronger, and lighter while retaining its traditional fat bike features. The Argus Trail is designed for teenagers, but it’s so beefy that a small adult could ride it without issues.

The paint job is stunning, and unlike the “Walmart Bikes” you find in the local stores, this bike is lighter without sacrificing durability. It doesn’t feel cheap, and the 7-speed Shimano shifters respond quickly, allowing you to change pace with ease.

The Hi-Ten steel frame is highly resistant to wear and tear, and the fat tires are strong enough to take a 300lb kid without issues. It’s well-equipped with premium components that translate into a higher price point.

That said, the MTB is challenging to assemble, especially if you have no experience putting a bike together. It’s also quite heavy at 22.5lbs and can be difficult for teens to ride when climbing an incline.

The tires are 4.0″, which is excellent, but the tread is shallow. Consequently, it is not grippy on snow-covered trails. Nevertheless, the Mongoose Argus is still an exceptional bike with premium parts often found on bikes that cost thousands of dollars.


  • XX
  • Gorgeous colors and design
  • High-quality components
  • Can withstand long-term abuse
  • Great for all terrain types
  • Suitable for smaller adults


  • Tires have shallow tread
  • Expensive
  • The bike is a challenge to assemble

Best Budget: Schwinn High Timber

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The Schwinn brand is a household name in bikes due to its affordable price range and premium quality. Go for the Schwinn High Timber Youth if you need a durable MTB to last your teen years.

The mountain bike is fantastic on the trails, including rides around the neighborhood. The tires are pretty knobby for extra grip and high-quality alloys for extra stability.

The standout feature of this bike is the quick-release lever that makes it easy to adjust the seat as your teen grows older.

Fortunately for you, the manufacturer assembles the complex components before shipping. So all you need is to follow the instruction manual, and you are good to go. Schwinn offers the High Timber in various frame options like aluminum and steel.

The difference strength-wise is clear between both materials. Steel alloy will give you extra durability for off-road and trail biking. Still, it’s also heavier and not as easy to handle.

However, the aluminum frame is a light alloy with better handling and suited for city biking.

Schwinn’s High Timber is not without its drawbacks. Firstly, there are complaints that the derailleur doesn’t shift correctly.

While the components are high grade, they require many adjustments at the bike shop, adding to the bike cost. All the same, it’s still an excellent investment for your teen and a mountain bike that works as intended.


  • Excellent entry-level MTB
  • Easy assembly
  • Precise braking
  • Alloy frame
  • Knobby tires provide fantastic traction
  • Quick-release bike seat adjuster
  • Reasonable price


  • Derailleur shifts feel the same
  • It needs a lot of fine-tuning

Best Mountain Bike for Teenager Buyers Guide

The best way to know if a mountain bike is a good fit for your teenager is to see if their feet are firmly planted on the ground while sitting on the bike.

Unfortunately, the only way to know this is after purchasing the bike. In the same vein, the wheel size indicates the size of the best mountain bikes for teenagers. Other factors to consider when buying a teenage mountain bike include:

Bike Style

Mountain bikes come in assorted styles, including electric and hybrid. You need to know the bike type to buy and do your research before settling on a bike. Preferably, you can go to a bike shop to get more information on what you need.


Teen mountain bikes are either aluminum alloys or steel. Steel bikes often cost less with the ability to take more punishment on the road. The drawback is the weight and ability to take in rust when you expose the bike to lousy weather. 


There are various tire types like hard plastic, solid foam, and honeycomb. The kind of tire you need depends on your location and biking terrain. For example, slick tires work best on city roads, while knobby tires give you extra grip on the trails.


The tire and material type affect the bike’s weight. Lighter materials and slimmer tires will make a bike more effortless for the teenager to handle.

Frequently Asked Questions

The answers to these FAQs can provide you with further help.

What makes for the best mountain bike for teenagers?

MTBs come in different sizes and shapes, but the overall thing to look out for is the brand reputation. The bike quality, customer service, and warranty are essential when choosing a mountain bike.

Mountain Bike or Road Bike: Which Is Better?

Both bikes are great, depending on what you’re looking for.

What is the best accessory for a Teenager’s Bike?

The best accessory for a teenage mountain bike is a helmet. Other vital accessories include a water bottle to prevent dehydration on the trails and a basket to store necessary items like keys and cell phones.

Wrapping Up: Best Mountain Bike for Teenagers

There are hundreds of mountain bikes out there, and it’s quite the challenge to find the right bike that suits your needs. Some MTBs have the looks but can be challenging to ride, with parts that fail when pushed to the limit.

Even if you find a suitable bike, there’s no guarantee they’ll like it. Fortunately for you, the three bikes on this list are the best in their class, capable of various riding styles to conquer the most challenging terrain.

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