14 Best Kids Mountain Bikes 2021 Review – Editor’s Choice Awards

The best kids’ mountain bikes will allow the little ones to explore more places without compromising comfort. These bikes have flat handlebars and wide tires, making them tackle even tough terrains. They are made for cruising on rough surfaces, not just paved roads.

With too many options for children’s mountain bikes, making the right choice is never easy. From the features to the design, there are many factors to consider. Go beyond the price of the bike as you try to make the right choice.

Having a hard time deciding what to buy? To make things easier, keep on reading and we’ll talk about the best options for the best mountain bikes for children.

Best Kids Mountain Bikes Review

Diamondback Bicycles Cobra 20 Youth 20″ Wheel Mountain BikeDiamondback Cobra 20 Youth 20 Wheel

As you search for the best youth bikes, this is one product that deserves your attention. This is from one of the most reliable brands in the market, so you can be confident that the performance of this bike will be hard to rival. According to the manufacturer, it is recommended for kids who are 4 to 9 years old.

This bike comes with a steel frame. It is quite heavy, but this is not a problem given how durable the material is. This is one of those bikes that can grow with the rider, making it functional even after several years.

One of the highlights of this kids’ MTB is the Shimano 6-speed drivetrain. This will make shifting almost effortless for the user while providing options depending on what is suitable for a specific terrain condition.

You don’t need to worry about the safety of the rider when using this bike. It has linear-pull brakes providing the option to adjust the reach based on what is most comfortable for the user.

The HL Zoom 40mm fork is also exceptional. It manages vibrations to help minimize fatigue, even when riding for an extended period.

The big tires are also great. They are stable and durable. They have excellent grip on a variety of surfaces, so you can be confident of your safety and comfort.

Lastly, you won’t have a hard time dealing with the assembly of the bike. It is built ready to ride, which means that almost all of the components are pre-installed once the bike is shipped. It won’t take long before it is ready for kids to use.


  • High-quality parts
  • Easy to assemble
  • Has a reliable stopping power


  • Does not come with a kickstand

Huffy Kids Hardtail Mountain Bike for BoysHuffy Hardtail for Boys

When looking for mountain bike for boys, this is one product that deserves your attention. The reputation of the manufacturer is already a compelling reason to consider this over other models. This is a 20-inch bike that is suitable for users who are 5 to 9 years old or for those who have a height of 44 to 56 inches.

The suspension fork is also a good thing for this bike. Even when your kid is on bumpy surfaces, the bike can absorb most of the impact, which has a huge effect on the overall comfort of the user. Even rocky terrains will be effortless for young riders to conquer!

It comes with a slight-rise handlebar. This is quite higher compared to traditional mountain bikes for boys, but we love how it can promote a more upright sitting position. This makes the bike more comfortable.
It is also worth noting that it comes with Crayton grips. Even when their hands are wrapped on the handlebar for a long time, they will remain comfortable.

Many of its users were also happy with the indexed Shimano TZ-31 rear derailleur. It is equipped with a micro-twist shifter for effortless gearing. To be versatile, there are six speeds available. Whether for downhill cruising or uphill climbing, it offers the right gear that the mountain bike needs.

The assembly of this bike does not need to be a headache. The manufacturer provides a comprehensive video, providing you with step-by-step instructions.

The frame of the bike is made of steel. It is quite heavy compared to aluminum. Nonetheless, the good thing about steel is that it is durable. Not to mention, the steel frame is also backed by a lifetime warranty from the manufacturer.


  • Great suspension
  • Comes with a kickstand
  • Consistent brakes


  • Can be quite heavy

Raleigh Bikes Eva 24 Kids Hardtail Mountain Bike for Girls Youth 8-12 Years OldRaleigh Eva 24 Hardtail for Girls Youth 8-12 Years Old

If you do not mind going on a splurge for a children’s mountain bike, this is one product that deserves your attention. This is quite expensive compared to most of the options on our list, but the price should not be an issue because it can deliver an impressive performance.

This 24-inch bike is designed for riders who are 8 to 12 years old. In terms of height, the manufacturer recommends this bike for riders who are 53 to 62 inches. It has a low stand over frame, which also means that it will be easy for the user to get on and off this mountain bike.

Speaking of the frame, the main material used in this bike is aluminum. While it may not be as forgiving as steel, we love how it keeps the bike lightweight, making it easy to maneuver.

The 50mm high-grade suspension fork is also notable. This is more comfortable compared to bikes with a rigid fork. This allows the bike to absorb impact, which will be a handy feature when kids are biking on rough terrains.

The saddle is especially designed for the body of girls. It is narrow and padded, so you can be confident that it will be comfortable.

The braking system is impressive. It is equipped with mechanical disc brakes, which will be easy for the rider to engage, quickly putting the bike into a complete stop. Whether your child on slippery surfaces or rough roads, the stopping power of this bike is reliable.


  • Wheels provide excellent stability
  • Rust-resistant frame
  • Good shifting system


  • Dual suspension needs heavy maintenance

Head Beyond Mountain BikeHead Beyond

Equipped with a 24-inch wheels and a 12-inch frame, this is a unisex kids off-road bicycle. This is a good entry-level bike for young riders. While it is built with the needs of starters in mind, it is packed with advanced features to guarantee the best experience.

The Zoom suspension fork is one of the best features that you will find on this bike. With the latter, it will be easy for the bike to surpass bumps. Even on rocky terrains, the suspension can do a great job in the absorption of vibration, and hence, this will make kids feel more comfortable while they are exploring the great outdoors.

The comfortable saddle by Vader is another good thing about this bike. It is designed to deliver optimal support. The thick cushioning is also a good thing, especially for shock absorption. This helps to minimize fatigue on the rider. It also comes with a quick-release clamp to easily adjust the height of the seat depending on the inseam of the user.

It is also impressive because of the 21-speed Shimano gearing system. This is one of the most advanced of the options for good mountain bikes for kids. Because of the latter, you can expect versatility. Regardless of the riding environment, there is a gear for that. The best thing is that shifting from one gear to another will be a breeze for kids to accomplish.

Lastly, the bike comes with Promax aluminum V-brakes. This is a basic braking system that can disappoint those who are looking for something premium. For most riders, however, the bike’s stopping power is more than enough.


  • Lightweight
  • Comfortable saddle
  • Great suspension fork


  • Awkward kickstand position

Mongoose Ledge 20” 2.1 Boys’ Mountain Bike20 Mongoose Ledge 2.1 Boys

If you are looking for the best boys mountain bikes, this is one product that deserves your attention. The best thing about this product is its price. It is one of the most affordable from our recommendations. While it is budget-friendly, you can be confident that it is packed with exceptional features.

The aluminum frame is one of the highlights of this bike. This material is known for being lightweight without compromising durability. It is also rust-resistant, so the bike can outgrow the rider.

It comes with 20-inch wheels. At this size, it is ideal for kids who are 6 years old and above or those who are 4’ to 5’ in height.

Like many of the bikes that are part of this buying guide, there is also a suspension fork. The fork moves along with the bike, which makes it more forgiving. What this means is that it can do a great job when it comes to shock absorption. This will minimize the vibration that kids will feel when they are using this bike.

While there is nothing special with the padded seat, the cushioning will add comfort. Along with the suspension fork, this can also be effective in minimizing the fatigue that the rider will feel.

Stopping the bike will be almost effortless of the user. This is possible because of the linear-pull brake, which will be a snap to engage.


  • Affordable
  • Lightweight
  • Easy to assemble


  • Not for tall kids

Mongoose Exlipse Full Dual-Suspension Mountain Bike for KidsMongoose Exlipse Full Dual-Suspension

Mongoose is one of the top brands for children mountain bike, so you can be confident that the quality of this product is second to none. This bike is built with a steel frame. This is not as lightweight as aluminum, but that should not be a big problem. Kids will not have a hard time enjoying this bike. Steel is also great because it is durable. Although, you need to keep an eye since it can be prone to rust.

The 21-speed Shimano derailleur is another great thing that you will find in this mountain bike. Kids will love how they have choices for gearing depending on what the situation requires. Whether it is climbing uphill or cruising downhill, the rider can easily shift from one gear to another as needed.

The front and rear linear-pull brakes are far from being the most advanced, but they can do an excellent job of ensuring a strong stopping power. Even when kids are on wet surfaces, the brakes are easy to activate, which can provide you with peace of mind regarding your kid’s safety.

This mountain bike for kids comes with a three-piece crank. Compared to a one-piece crank, this is more durable.

Lastly, as the manufacturer notes, this bike is ideal for users who are 8 to 11 years old.


  • Excellent suspension
  • Good value for money
  • Impressive stopping power


  • Assembly can be tricky

Raleigh Bikes Tokul 24 Kids Mountain Bike for Boys & GirlsRaleigh Bikes Tokul 24 Mountain for Boys & Girls

If you are looking for the best mountain bike for 10-year old boy, this is one product worth looking at. According to the manufacturer, this is suitable for users who are 8 to 12 years old.

One of the best features of this bike is the 7-speed Shimano Revo Shift shifters. With the latter, there are 14 gearing combinations that users can enjoy in this girl and boy mountain bike. This means that regardless of the terrain conditions, there is an appropriate gear to ensure the best ride.

The large tires are also notable. They are bigger than most that you will see in bikes designed for kids. This is a good thing because it will be more forgiving and stable. This minimizes that the vibration that kids can feel, especially when they are riding on rough terrains.

This bike comes with mechanical disc brakes. This isn’t exactly what we expect in its price point,  but the braking system is impressive. While it has a great stopping power, especially when the rider is going downhill, some might not like how this kind of brake requires a lot of effort when it comes to care and maintenance.

The low-frame height of this bike makes it suitable even for small riders. Nonetheless, this won’t be easy to outgrow. It comes with an adjustable seat, so you can simply make the seat higher if the rider gets taller.


  • Stylish
  • Comes with high-quality components
  • Easy to control


  • Expensive

HASA 2018 18-Speed Kids Mountain BikeHASA 2018 18 Speed

When looking for the best mountain bikes for girls and boys, this is another product worth considering. HASA is a Taiwanese brand that many of you are unfamiliar with. However, do not let this hinder you from considering this bike for your little one. When you look at the features, you will find a lot of compelling reasons to choose this product.

Among others, one of the most notable in this bike is its aluminum alloy frame, so you can expect it to be lightweight. If the bike is too heavy, kids can have a hard time having it maneuvered, so you will like how the weight of this bike is kept at a minimum.

Meanwhile, for safety, this bike is equipped with ARTEK alloy 4-finger brake levers. The braking system isn’t as dependable as what you can expect in more expensive mountain bikes for kids, but that does not mean that it will end up compromising the safety of the rider.

Another good thing that you can expect in this product is the Shimano Tourney shifter. With the latter, it will be effortless for the rider to shift from one gear to another. The transition will be effortless depending on the gear that a specific terrain requires.

Lastly, we also loved how the alloy frame of the bike is backed by a lifetime warranty from the manufacturer. This demonstrates how confident they are about the quality of the bike.


  • Lightweight
  • Easy to assemble
  • Lifetime warranty on frame


  • Quality of shifters can be better

Raleigh Bikes Raleigh Eva 24 Girl’s Mountain BikeRaleigh Eva 24 Girl's

Looking for the best girls’ mountain bike? The Raleigh Eva 24 is one of the models that deserves your attention. One of the defining features of this product is the aluminum frame, which is known for being lightweight. Kids will not have a hard time bringing the bike around.

Aside from being made of aluminum, one more thing that is notable about its frame is the low stand-over height. The main benefit of the latter is that it will be easy for the rider to get on and off the frame.

The bike features an SR Suntour XCT 50mm travel fork. The manufacturer claims that the latter is effective in providing a smoother ride even in rough terrain. The result is that kids will feel more comfortable since they are not absorbing most of the impact. The bike’s fork is the one doing that for them.

For stopping power, the bike comes with a mechanical disc brake. This is a common braking system you will find in affordable options for girls’ mountain bikes. While it isn’t advanced, it delivers a decent job.

Lastly, we also like how the manufacturer is offering a limited lifetime warranty on the frame. To be eligible for the warranty, however, take note that you must be the original owner of the bike.


  • Affordable
  • Lightweight
  • Excellent wheels


  • Pedal has an awkward position

Diamondback Bicycles Tess Youth Girls Mountain BikeDiamondback Tess Youth Girls

Diamondback is one of the most popular brands in the market for the best mountain bikes for kids. The reputation of the manufacturer is already a compelling reason to choose this product over many others.

The frame of the bike is made of steel. This is quite heavy. Despite this, the manufacturer claims that the frame is designed to satisfy the rider’s need for speed. If there’s one thing that we love about steel, it would be that it is more forgiving compared to lighter materials, which will result in minimal vibrations and optimal comfort.

For the drivetrain, kids can choose from 21 speeds available. From conquering rough hills to cruising on paved roads, this mountain bike can deliver the suitable gear.

Speaking of gears, the Sun Race Twist Shifters are notable. With the ergonomic design of the shifters, it will be effortless for kids to switch gears. This will also minimize the strain on their hand, even when riding for an extended period.

To provide a reliable stopping power, it comes with linear-pull brakes. Plus, there are also comfortable levers, which means that engaging the brakes will be almost effortless for the little ones.

Lastly, we love how it comes with a 40mm travel fork. This allows the bike to tackle any obstacle on the surface while making sure that kids will not feel the bumps.


  • Stable even when climbing hills
  • Good suspension system
  • Ergonomic shifters


  • Heavy

Diamondback Bicycles Sync’r 24 Kids Mountain BikeDiamondback Sync'r 24

Diamondback is one of the most popular brands for the best mountain bikes for youth and kids, and this model is one of their best offerings to date. It comes with an aluminum frame, which is known for being durable and lightweight. However, take note that other parts of the bike can be quite heavy, especially because it comes with larger tires compared to most of the options in this buying guide.

The low geometry of the bike is one of the reasons why it is a great pick for young riders. This will allow the rider to get on and off the mountain bike comfortably.

It is also worth noting that this bike is equipped with SR Suntour XCR suspension fork with a travel of 80mm. The latter is the one most responsible for its ability to absorb bumps to ensure comfort even when biking on rough terrains.

Similar to the other options for the best kids MTB from Diamondback, this model is built ready to ride. This means that when the bike is shipped, most of the parts are already pre-assembled. Upon unboxing, it won’t take a long time before your kids can take the bike out for a spin.

Lastly, it is also impressive because of the lifetime warranty of the frame, which is proof that the manufacturer believes that it will last a long time.


  • Easy to assemble
  • Rugged construction
  • Excellent tires


  • Heavy

Dynacraft Gauntlet Boys’ Dual Suspension 21-Speed Mountain BikeDynacraft Gauntlet Boys' Dual Suspension 21-Speed

The best kids mountain bike must withstand the test of time and not easily outgrow the user. If that is what you are looking for, then you have a good reason to consider this product over many others. We can attribute the durability of the bike to its steel frame. However, the main problem with steel is that it adds significant weight to the bike. No wonder, this is one of the heaviest from all the options for the best youth mountain bikes on our list.

If you are looking for a bike that kids can use in various conditions and environments, this is a product you won’t regret buying. This model comes with a 21-speed derailleur. The latter is incorporated into the bike so that it will be versatile. From smooth roads to rough hills, this bike is ready for the challenge. It has multiple gears that will allow the bike to tackle a wide array of surface conditions.

The front and rear V-brakes will ensure quick stops. V-brakes, however, are not the most reliable when it comes to braking systems. Nonetheless, this does not mean that it is inferior. The hand brakes are in strategic positions and the lever has an ergonomic design, making it effortless for the young ones to put the bike at a complete stop when there are obstacles ahead.


  • Good brakes
  • Comes with a full suspension frame
  • Easy to assemble


  • Handlebars can easily loosen

Diamondback Bicycles Lustre Youth Girls Mountain BikeDiamondback Lustre Youth Girls

If you are looking for a Diamondback kids bike, this is one brand that deserves your attention. While this is from one of the most reputable brands in the market for bikes, you will be happy to know that it comes at a reasonable price. This is a great entry-level bike for young girls. Nonetheless, despite being cheap, the quality is impressive.

The aluminum alloy frame is one of the most notable features of this product. As you most probably know by now, aluminum is impressive because it keeps the weight of the bike at a minimum. This means that maneuvering the bike will be easy for your little rider. While it keeps the weight at a minimum, this does not mean that durability is sacrificed.

For versatility, kids will love how this bike comes with Shimano Tourney 1×6 Speed Drivetrain. The latter offers a smooth shifting mechanism. This means that transitioning from one gear to another will be a snap. Best of all, there is a gear for different surface conditions, which will help to optimize the performance of this kid’s mountain bike in various environments.

It is also impressive because of the 40mm travel fork. Like many of the products that are mentioned in this buying guide for bike for teens and kids, the fork allows an exceptional suspension to promote the highest level of comfort.

Lastly, based on the recommendations from the manufacturer, this bike is best for kids who are 4 to 9 years old or those with height of 44 to 54 inches.


  • Affordable
  • Lightweight
  • Durable


  • Bad pre-assembly

Diamondback Bicycles Octane Youth Mountain BikeDiamondback Octane Youth

Wrapping up our list of cool mountain bikes for kids is another product from Diamondback, so you can be confident that the quality will be second to none. We love the durable aluminum frame of the bike. It is tough but lightweight, guaranteeing many years of use. Even as your kid gets older, the frame and other parts of the bike will remain functional. The aluminum has been through innovative heat treatment, which is exactly why it demonstrates an incredible strength.

The suspension fork is another well-loved feature of this product. This will ensure a smooth ride regardless of the terrain. It is designed to handle bumps with ease. Your kids will stay comfortable throughout the ride.

Meanwhile, with the Shimano 6-speed drivetrain, kids can enjoy a wide gear range. This will make it suitable for a variety of terrains. Whether going uphill or downhill, on smooth roads or rough surfaces, there’s a gearing option for that.

To provide the bike with reliable stopping power, it is equipped with linear-pull brakes. This may not be as advanced as those you will find in adult mountain bikes, but there’s no need to worry. It is decent, and best of all, it is simple. This means that engaging the brakes will be effortless and it will be quick to put the bike at a complete stop.

Lastly, it also has high-quality wheelset. Like the other components of the bike, it is built to withstand many years of use.


  • Durable frame
  • Great suspension
  • Simple braking system


  • No kickstand

How to Choose Good Mountain Bikes For Kids

The options for top mountain bikes for kids will be plenty, but that does not mean that you can pick just any product. To help you narrow down the possibilities, below are some of the most important things to consider.


One of the first things that you need to consider is the size of the mountain bike for kids. This will depend on the age, height, and weight of the rider. Below is a quick rundown of the recommended size of the bike wheel depending on the age of its user.

  • 2 to 4 Years Old: 12-inch Wheel
  • 3 to 5 Years Old: 14-inch Wheel
  • 5 to 8 Years Old: 16-inch Wheel
  • 6 to 10 Years Old: 20-inch Wheel
  • 8 to 12 Years Old: 24-inch Wheel
  • 12 Years Old and Above: 26-inch Wheel


This is one of the most important parts of the kid’s mountain bike. This will be indicative of the weight and durability of the bike. You don’t need a carbon fiber frame. It is an overkill for kid’s bikes.


If you want the bike to be lightweight without compromising durability, it is hard to go wrong with aluminum. Because of keeping the weight of the bike at a minimum, it will be easier for the little ones to maneuver it even on rough terrains.


This is cheaper and heavier compared to aluminum but equally durable. One of the best things about steel is that it is more forgiving. This means that kids will feel less of the impact or vibration since the frame will absorb it.


The fork is the part of the mountain bike where the front wheel is mounted. This is turned using the handlebars, which will also dictate where the bike will be going. Below are two of the most common kinds of a fork that you will see in a child mountain bike.

Rigid Fork

A rigid fork, as the name implies, is rigid. There are no moving parts. Between the two, this is lighter. It is cheap and sufficient in most riding conditions. It is also maintenance-free.

Suspension Fork

If you want the mountain bike to be more comfortable for kids, you can never go wrong with a suspension fork. It will make rides smoother, especially on rough terrains. The suspension will minimize the impact that kids can feel when riding.


The braking system of the mountain bikes for kids is crucial for their safety. Especially as they get older and ride independently, they need highly functional brakes that can deliver exceptional stopping power as soon as they are engaged.

V-Pull Brakes

Mini V-brakes will be sufficient for most riders, especially in 16 and 20-inch bikes for kids. It is the type of brake you will see in most cheap bikes, but in most cases, it will be more than enough.

Mechanical Brakes

It offers a bit more stopping power compared to mini V-brakes, making it better for older users who are ready to step-up into a more advanced bike.

Hydraulic Disc Brake

This is the most expensive but also the best in terms of performance, making it worth every dollar. It has the most exceptional power from the three and is also the easiest to pull. This will also be more comfortable.


Shifting can be confusing for children, so choose basic shifters that will be easy to learn. Once they have mastered using this, they can move to a more complicated shifting mechanism. However, especially if it will be the first mountain bike of the user, the shifter should be as simple as possible.

Grip Shifter

They are also called twist shifter or twist-grip shifter. With the design of this shifter, it is best for kids who have small hands, making it easier to use. They are commonly found in kids’ mountain bikes with a straight handlebar.

Trigger Shifter

This type of shifter is better for kids because it allows them to shift without additional torque. Even in adult mountain bikes, trigger shifters are better. There is no risk of accidental shifting and it also delivers a high level of precision.


The right choice for the geometry of the bike will depend on the surface conditions and the type of ride that kids will be doing. To determine the geometry of good mountain bikes for kids, here are some of the parts that you should be looking at.


This is the horizontal distance that runs between the center of the head tube and the bottom bracket. It affects the length of the bike. When it is too long, it will be difficult for kids to reach the handlebar from their seats, making them lean forward more.


It is the height from the center of the head tube to the bottom bracket of the mountain bike. This will determine the sitting position of the kid when pedaling.

Head Tube Angle

It is the angle between the ground and the front fork. This is important as it will have an impact on the maneuverability of the bike, especially on rough terrains.

Chainstay Length

This is the distance between the rear axle and the center of mass of the rider. Longer chainstays are better for kids if they want better stability in every ride.

Bottom Bracket Height

It is the distance between the ground and the center part of the crank. Lower brackets can easily transition during turns. However, the drawback is that it can clip on rocks and bumps, which can cause damage over time.


This is the distance between the front and rear wheel axles. The wider they are from each other, the more stable the bike will be. The narrower is the distance, on the other hand, the easier it will be to maneuver the bike.


The quality and performance of the mountain bikes for kids will also be largely influenced by the tires that come with it.

You can go for solid flat-free tires. They also require lesser maintenance. The problem with the latter, however, is that the performance is compromised. If you are looking for a better alternative, you should go for air-filled tires. They have excellent cushioning and grip to ensure better performance on a variety of terrains.


This is one thing that is impossible to ignore for mountain bikes girls and boys. Kids will love a bike that looks good, so make sure to give them a voice on what to buy. Especially the young ones, they would most likely prefer one that is inspired by their favorite cartoon characters. As they get older, they will have changes in their preferences, opting for a sleeker style.


The best mountain bikes for kids will allow the little ones to enjoy the great outdoors in comfort and style! The products mentioned above can deliver exceptional performance, making them deliver the best bang for the buck.

Most parents will decide based on price, but that should never be the case. At the end of the day, you should not mind spending more if this means that your kid will have an exceptional ride!