Best 24 Inch Mountain Bikes for Kids

Our kid bike testers have spent years riding and reviewing some of the best 24-inch mountain bikes out there. From lightweight rigid frames for beginners to front-suspension builds with high-end air forks, we’ve logged plenty of trail miles and seen these bikes perform on climbs, descents, and technical terrain.

Through all that testing, three features have stood out as essential:

• Low climbing gear – without it, hills quickly become a struggle.
• Disc brakes – ideally hydraulic, for consistent and reliable stopping power.
• Trigger shifters – allowing kids to shift quickly while keeping a secure grip.

Other factors, like overall weight, modern mountain bike geometry, wide handlebars, and tubeless compatibility, also make a difference, but bikes that nail the three features above usually get those right too.

The Best 24 Inch Mountain Bikes for Kids

Since specs change often, we haven’t tested every current model, but you’ll find updated specs and mini-reviews of several standout bikes below. Each has its own strengths and tradeoffs, so be sure to explore our notes to find the best fit for your rider.

RIGID 24 inch MOUNTAIN BIKES

Why We Love the Polygon Premier 24 Disc

At its price point, the Polygon Premier 24 Disc is hard to beat for families looking to get a capable trail bike without breaking the bank. It comes equipped with a Shimano derailleur and trigger shifters, Tektro mechanical disc brakes, and Vee Tire Crown Gem 2.25″ knobby tires — a solid, trail-ready package that punches well above its price.

The 7-speed drivetrain offers a gain ratio range of 2.45 to 6.5, which is not as wide as what you’ll find on the Prevelo, Specialized, or Woom, but low enough to handle rolling hills and gentle climbs. Trigger shifters keep gear changes intuitive, and the Tektro mechanical disc brakes provide reliable stopping power.

The Premier 24’s biggest drawback is weight. At 27.9 lbs, it’s on the heavier end for a 24″ kids’ mountain bike, which can be a real consideration for petite or timid riders, especially on longer climbs. But for beginning trail riders on a budget who are tackling moderate terrain, the Premier 24 Disc delivers exceptional value and a genuinely trail-capable spec sheet right out of the box.

Why We Love the Prevelo Alpha Four

Updated for 2025, the Prevelo Alpha Four is lighter, more trail-ready, and more capable than ever. With hydraulic disc brakes, wider all-terrain tires, and durable double-wall tubeless-ready rims, it’s designed to transition seamlessly from neighborhood pavement to dirt trails and beginner singletrack. The stock tires offer solid grip for mixed terrain, but riders can also upgrade to tires up to 2.1” wide for even more traction and stability on technical trails.

Lightweight, quick, and impressively nimble, the Alpha Four gives adventurous kids the confidence to push their skills—whether that means tackling a climb, bombing a descent, or catching a little air at the local dirt jumps. Its low, stable geometry and responsive handling help riders stay in control as the terrain gets more challenging.

With 8 gears and a wide gain-ratio range, the Alpha Four is equally at home powering up steep hills or picking up speed on the flats. Kid-friendly trigger shifters make gear changes intuitive, while upgraded hydraulic disc brakes provide reliable, powerful stopping in all conditions.

Why We Love the Specialized Riprock 24

Updated for 2026, the Specialized Riprock 24 keeps its impressively dialed geometry but eases things up a bit with the addition of a handlebar sporting a 40mm rise. The result is a bike that feels both aggressive and approachable—perfect for young riders who want to progress their skills without feeling over-stretched.

For groms eager to hit the hero dirt, the Riprock delivers serious capability at a reasonable price. It comes equipped with Promax hydraulic disc brakes, a 9-speed MicroSHIFT Advent drivetrain, and traction-obsessed 2.1” wide tires that hold their line across a mix of trail conditions.

With its 68° head tube angle, the Riprock is a nimble climber, but it’s also dropper-post compatible, giving kids the option to get low and in control on descents. Add in the wide-range 11–42t cassette, and the Riprock makes it easy for riders to grind up climbs and pick up speed for the jump lines.

What We Love About the woom OFF 5

The woom OFF 5 is a lightweight, nimble masterpiece and an excellent gateway mountain bike for beginning and intermediate riders. True to woom’s reputation as a kid-focused brand, every component is thoughtfully designed for young riders—everything from the cockpit to the drivetrain is sized for a precise fit and natural feel.

With a more upright geometry than the Prevelo and Specialized, the OFF 5 is especially well-suited for petite, timid, or beginning riders who benefit from a comfortable, confidence-boosting riding position. Intermediate cross-country riders will also appreciate its efficiency and responsiveness, particularly on longer rides with steady climbs.

Its two biggest strengths are weight and size. At just 22 lbs., the OFF 5 is featherlight compared to most bikes in its class. It also has a longer wheelbase than both the Prevelo and Specialized, giving it significantly more room for growth. In fact, the Prevelo’s 26” model is similar in size to the woom’s 24”—a clear indication that kids can ride the OFF 5 comfortably for longer before sizing up. The tubeless-compatible rims are another bonus, allowing riders to upgrade for better traction, lower pressures, and fewer flats.

The main tradeoff is gearing. The OFF 5 doesn’t offer as low of a climbing gear as some of the other 24-inch mountain bikes on our list. If your child will be tackling steep climbs or sustained elevation gain, a bike with a wider gear range may be a better fit.

Where the OFF 5 really shines, though, is in its ability to grow with your rider. Compared to many bikes in this category, its frame and geometry offer more room for growth, making it a bike kids can enjoy for several seasons as their skills and confidence expand.

What We Love About the Seeker 24

The Early Rider Seeker 24 is an exceptional build from top to bottom, oozing with quality in every component. If you want a truly top-tier kids’ bike  (likely nicer than your own!) the Seeker is hard to beat. With a Shimano drivetrain, powerful Tektro hydraulic brakes (a clear step up from the Promax brakes found on many competitors), tubeless-compatible rims, and high-end stock pedals with buttery-smooth bearings, the Seeker 24 feels like a mechanical work of art you’ll wish you were small enough to ride.

Although the Seeker 24 is a rigid bike designed for all-around young riders who seamlessly transition from neighborhood cruising to singletrack, its geometry is unapologetically mountain-bike inspired. A slack 67° head-tube angle, low bottom bracket, and long wheelbase create a planted, confidence-boosting ride that helps kids stay stable on rougher terrain.

For more advanced riders pushing into chunky blues or early blacks, Early Rider also offers the Seeker X24 with a 120mm air-sprung suspension fork.

SUSPENSION FORK MOUNTAIN BIKES

What we Love About the Polygon Xtrada 24

If your young grom is ready to hit more challenging trails, but you’re not quite ready to spend top dollar, the Polygon Xtrada 24 offers the perfect mix of quality components and a lower price. Well-built MTBs with an aluminum frame, air fork with lockout, hydraulic disc brakes, quality tires, as well as a 1×10 drivetrain don’t come cheap, but the Polygon Xtrada 24 makes it more affordable.

When put to work on single track, the Xtrada didn’t skip a beat and eagerly tackled green and blue trails without hesitation. Its slack 65º head tube angle easily takes on chunky rock gardens and rooty trails when pointed down. When headed up, the slacker head tube angle isn’t the most efficient, but our testers had no complaints on trails with mild elevation changes (less than 500ft gains).

Compared to the Prevelo Zulu and woom OFF AIR, most of its components are pretty on-par, but the Xtrada’s cost savings are evident in lack of tubeless compatible rims and tires as well as its heavier weight. The Xtrada comes in at 28 lbs., which is about 3 lbs. heavier than the Zulu and 6 lbs. heavier than the OFF AIR. For kid shredders who regularly tackle more elevation, the extra pounds on the Xtrada will be much more noticeable, but for those riding more level terrain, the difference won’t be as apparent.

What we Love About the Prevelo Zulu 4

Durable, rugged, and built for progression, the Prevelo Zulu 4 is ready to take on every drop, rock garden, and root section your young rider can find. With a slack 66° head tube angle paired with a 100mm air fork, the Zulu is made for downhill confidence—yet thanks to its 10-speed MicroSHIFT Advent X drivetrain with trigger shifters and derailleur, plus an 11–48t cassette, it also powers back up the climbs with ease. (That’s a wide 1.39–6.09 gain ratio range!)

When trails get rowdy, the Zulu’s hydraulic disc brakes with dual 160mm rotors deliver powerful, consistent stopping. Its tubeless-ready rims allow lower PSI for improved traction, and it’s also dropper-post compatible for added control on technical descents.

Another standout feature is fit: the Zulu offers the lowest minimum seat height of any bike in its class, making it accessible to smaller riders and giving them the chance to enjoy the advantages of a larger wheel size sooner.

What we Love About the woom OFF AIR

Featuring the same light and nimble build as the woom OFF (click here to jump to the summary above if you missed it), the woom OFF AIR 5 adds an extra level of air suspension goodness to the fun. Precisely tuned to work with lighter-weight kids, the confidence-building air fork of the OFF AIR will have your little one seeking out drops and jumps in no time.

What we Love About the Polygon Siskiu D24 EVO

While we tested the older D24X (now discontinued), the new Siskiu D24 EVO raises the bar and still delivers all the full-suspension fun a young downhill rider could want. As a stellar entry into “full squish,” the Siskiu D24 EVO strikes an impressive balance of performance and value, giving kids many of the same features found on adult bikes—just tuned for younger riders.

Tubeless- and dropper-post-ready, it’s designed to tackle chunky trails with confidence. Tektro hydraulic disc brakes provide reliable stopping, while the 10-speed microSHIFT drivetrain with an 11–48t cassette offers plenty of gearing for both steep climbs and speedy descents.

While it doesn’t deliver the fine-tuned precision of an XS or S adult bike, the D24 EVO keeps things capable without over-biking or overwhelming younger riders. For families looking for a 24” trail-ready introduction to full suspension, it’s one of the best options available.

ELECTRIC MOUNTAIN BIKES

About the Specialized Turbo Levo SL Kids

The Specialized Turbo Levo SL Kids is built for kids who love the climb just as much as the descent. Thanks to its pedal-assist motor, our testers were able to ride longer and tackle much steeper trails than they could on a traditional mountain bike. The motor kicks in only when they’re pedaling, which means they still have to work—but it takes the edge off those long, exhausting climbs. And with the handlebar remote and app-based customization, it’s easy to fine-tune the level of help they get on the fly.

We also really appreciated the built-in Mastermind display, which shows battery life and speed without needing a phone or any extra gear. It’s a feature that gave both our young riders and their parents some peace of mind. Plus, being able to set a lower top speed through your local Specialized shop (something not possible on many other eMTBs) made it feel like a safer pick for younger or newer riders. And if you run into any issues, support is easy to find at any Specialized dealer.

That said, this bike isn’t for everyone. It has a pretty aggressive riding position, which works great for confident mountain bikers but might feel uncomfortable for beginners. It’s also heavy—almost 37 pounds—which can be a lot for smaller kids to manage off the bike. And while it comes with a dropper post, most younger riders won’t be able to use it because of the high minimum seat height. We ended up swapping it out for a standard post on our shorter testers. But if your child is already hooked on riding and ready for bigger trails, the Levo SL Kids can open up a whole new world of adventure.

Things to Look For When Choosing a 24″ Mountain Bike

There are a lot of things to consider when looking for a mountain bike for a kid. This list of items is not necessarily in order of importance, however all of these things are important to consider.

Wheel Size

What size mountain bike is your kid going to need? Like standard kids’ bikes, mountain bikes for kids are sized according to their wheel size and are available in 16”, 20”, 24”, 26″ and even 27.5″.

As parents, we tend to want to get our kids the biggest size of shoes, clothes, snowboards, and especially bikes due to how much you can end up spending on your kid’s two-wheeled ticket to happiness. However, this can lead to your child actually having less of a good time and wanting to go back inside to playing video games.

Be sure to pick out the right size for your child. That means a bike that fits them right now, not in 6 months. They learn easier, progress faster, and have less crashes by having the right-sized bike.

Geometry

The best geometry for a mountain bike is entirely dependent on what type of riding your child will be doing, as well as the terrain they’ll be tackling.

XC: For flatter trails and more XC oriented biking, you should be looking for something that has a bit steeper head and seat angles, around 65° to 67°. This will aid them on longer climbs and help them feel more stable and planted as they are cruising along the trail.

Downhill: As the terrain gets going downhill with steeper descents, and/or lift-served bike park riding, you’ll be looking for slacker numbers in head angle (in the low 60’s), shorter chain stays, and lower bottom bracket heights and lower stand over numbers. This will give your kid more confidence by helping them to maneuver the bike easier on steeps, jumps, and rougher sections of trail.

Bar Width & Stem Length: Most bike companies are catching on, but look for wider bars and shorter stems. This will give kids more control at the cockpit with more direct steering feedback. As kids grow, you could also look into getting a bit longer stem to give them more time on a bike before having to pony up for a new bike in the next size.

Weight

Weight is a huge factor to consider when getting the right mountain bike for your child. The lighter the bike, the better. Especially if you are expecting your kid to do any sustained pedaling uphill.

Rigid bikes will generally be the lightest. Full suspension bikes will be on the heavier side, especially with larger travel on more downhill-type mountain bikes.

Again, choose what bike you will get based on the type of terrain your child will ride. Some people think that full suspension is the only way to go. While full suspension can give more confidence, those bikes carry more weight. A couple of pounds can make a big difference to a kid that only weighs 60 lbs.

Kids are light and don’t need as much suspension as older, heavier riders. Lighter-weight kids tend to float and bounce through a lot of bumps that would really abuse adults. So while it may sound crazy, consider a hardtail, or even a bike without any suspension, depending on skill level.

Suspension Fork

Rigid: While certainly not conventional, a rigid fork on a kid’s mountain bike isn’t unheard of and they certainly have their place. For beginning kids riding flowy trails, the minimal amount of dampening a fork can provide is usually negated by the added weight of the suspension fork itself.  Kids are pretty darn light, so in most cases they don’t get the same benefits out of a fork as adults do.

For those purists, rigid forks can also help kids learn to feel the trail more and learn more quickly from mistakes.  Suspension forks can enable any beginning rider to be “sloppy” and delay their understanding of how to ride technically.  

Suspension: If you’re looking at a mountain bike with a suspension fork, there are a couple things to look for. (1) Travel, and (2) internals of the fork. Keep in mind that a kid’s bike is going to have a lot less travel than the bike you ride.

Travel: Travel will generally range from about 60mm-120mm. To give you an idea on a 24″ bike, 60 mm will be on the XC end of the scale with 120mm being on the downhill/bike park end of the scale.

Many air forks on kids bikes cannot achieve the amount of stated travel, especially if your child is very lightweight. The more high-end the fork, the more likely it will be responsive to a light weight child.

Fork Internals:

Suspension forks are either coil-sprung or air-sprung.  Coil-sprung are cheaper than air and are found on most lower to mid-range bikes.  The quality levels of coil-spring forks do vary greatly, however, as a high-end, coil-sprung fork can run circles around cheap, mass-produced forks.

Typically, the price of the bike is reflective of the bike’s overall components.  A cheap mountain bike is going to have a cheap fork and vice versa.  The more aggressive your child and the trails, the more aggressive the fork (and your budget) will need to be.

Although spring forks do work, an air sprung fork is much better as you can adjust the amount of pressure based on the weight of your kid. They also have more rebound and dampening adjustability and will usually have much more of a plush feel to them.

As a result, air suspension forks are a must for any downhill or really aggressive rider.  Coil sprung forks simply don’t have the rebound as well as the adjustability needed for the regular hits of a downhill ride.

Tires

Before heading out on the trails, you want to make sure the bike’s tires have plenty of tooth to them for the type of terrain you’ll be riding most often.  In most cases, the stock tires on 24″ kids mountain bikes are a versatile tread that will work well in most scenarios a child rider will find themselves in.

But for those riding rigid forks, and even for those who just want a little more cushion, consider adding a high-volume tire to the bike. These “mid-fat” tires are wider than traditional tires and are around 2.5″ wide. 

With more air between the tread and the rim, they offer more “squish” and help smooth out the ride.  Just be sure not to crank up the tire pressure!  Lightweight riders can ride at a much lower PSI.

If your trail of choice has you fighting off thorns and puncture weeds, mountain bikes with a tubeless or tubeless-ready option are ideal.  Many bikes come with tubeless-ready rims that you can easily convert to tubeless, while other bikes may require you to purchase a new rim and tire set.  In addition to preventing flats, a tubeless setup allows you to run at lower tire pressures without the risk of pinch flats.

Shifters

By the time a child is ready for a 24″ bike, they’re probably more than ready for gears. We highly recommend sticking to trigger shifters for true mountain biking.

Trigger shifters are ideal as they allows kids to shift without putting any addition torque on the handlebar to grip. Having watched a child crash on a trail as a result of twisting their grip shift too hard, we know all too well the benefits of triggers shifters for mountain biking.

Smoother and faster shifting is another benefit of trigger shifters, which will become essential as your child grows more confident and aggressive in their biking style. In recent years, triggers shifters have evolved in design to be much easier for kids to reach and active the buttons.

Brakes

If your child is going mountain biking, reliable brakes aren’t optional—they’re essential. Here’s what to know about the main types:

• Mechanical Disc Brakes – A step up from mini-V brakes, mechanical discs provide more stopping power and require less hand strength to pull. They’re common on mid-range kids’ mountain bikes.
• Hydraulic Disc Brakes – The gold standard. Hydraulics offer the most stopping power with the least effort, making them easier on kids’ hands and more consistent in all conditions. They’re becoming increasingly common on higher-end kids’ mountain bikes.

For kids who ride aggressively or spend time on steeper, downhill trails, hydraulic disc brakes are a game changer. They reduce hand fatigue, let kids ride longer, and build confidence by giving them the ability to control speed quickly and reliably.

Direct Sales Model or Bike Shop

There are some benefits to both sides of the coin when purchasing a mountain bike online or through a local bike shop. When you buy direct from brands like Prevelo or woom, you tend to get a lot of bike for your money. So there is a lot of value there. Especially if you are handy with a wrench and do most of the upkeep on your bikes.

When you buy a kids bike like Trek from a shop however, you can get included tune-ups, service, warranty, and in-house advice and help. However, just because you buy a bike from a direct sales brand, don’t think the shop will turn you away from tuning up and working on your bike.

FTC Disclosure: Affiliate links are included in this review.  No monetary compensation was provided for this review, however, some of the reviewed products were supplied by the manufacturer or distributor to help facilitate this article. All opinions and images are that of Two Wheeling Tots LLC.  All content and images are copyrighted and should not be used or replicated in any way. View our Terms of Use.