50cc vs 70cc vs 110cc Dirt Bikes: Which Is Right for Kids?

Short answer: 50cc engines suit complete beginners aged 4 to 7, with lightweight frames and automatic setups. 70cc bikes work best for growing kids aged 6 to 10 who need a bit more trail power. 110cc machines give experienced youth riders aged 10 and above the performance they're after.

Planning to get your child into off-road riding? When you start shopping for a dirt bike for kids, you'll see a massive spread of engine sizes, which can make picking out a dirt bike feel totally overwhelming at first. As parents, we constantly hunt for that perfect middle ground where safety, fun, and real performance meet up. Finding the correct dirt bike size for kids is what builds true confidence on the tracks. When a bike fits your child's physical size, they never feel spooked by heavy machinery. Let us walk through how 50cc, 70cc, and 110cc models stack up so you can pick the right ride. 

Why Should You Purchase A Dirt Bike For Your Child? 

An off-road bike gives your child a lot more than a fun weekend. Riding the kid's dirt bike builds hand-eye coordination, core balance, and fine motor skills. Kids also pick up spatial awareness and a real sense of responsibility once they start managing the throttle and running basic bike checks. It gets them outdoors and away from screens and video games, which most of us wouldn’t complain about. Heading out as a family to local tracks and trails across Australia makes memories that stick, and watching a young rider finally nail a new skill is a great confidence boost for them.

Which Dirt Bike is Best for Your Child?

Dirt bikes for kids need to match engine performance and seat height to your child’s age, height, and confidence. Here’s how the three popular classes compare.

50cc Dirt Bikes: Best for Beginners 

A 50cc dirt bike is the best starting point for little ones aged 4 to 7. These lightweight machines have low seats and simple, fully automatic setups, so there’s no clutch to stress over. Picks like the Crossfire CF50 50cc Kids Dirt Bike are built for easy handling, low weight, and gentle throttle response. Beginners can concentrate on steering, riding in a straight line, and braking, without sudden bursts of speed catching them out. Built-in throttle restrictors of this beginner dirt bike also let you, the parent, cap the top speed.

70cc Dirt Bikes: A Middle Ground for Growing Riders

Once kids aged 6 to 10 outgrow the smaller frames, a 70cc dirt bike gives them a welcome lift. It adds extra engine grunt but stays light enough to handle easily which makes it one of the best dirt bikes for kids. Models such as the Apollo RFN Thunder 70cc bring reliable 4-stroke power and sturdy suspension that soaks up trail bumps. That extra torque helps young riders tackle gentle climbs and uneven dirt with more confidence. For developing riders who want more speed but aren’t ready for a heavier frame, it’s fantastic value.

110cc Dirt Bikes: Best for More Experienced Kids

A 110cc dirt bike suits confident riders aged 10 and up who are ready for proper trail performance. These punchier bikes come with semi-automatic gearing, strong steel spoke rims, and plush long-travel suspension. Taller pre-teens get real legroom and riding ergonomics that fit their size. Step up to this class and skilled youth riders get the speed, stability, and tough construction that genuine off-road adventures demand. You can go with the Crossfire CF110 110cc dirt bike for a durable and smooth experience. 

Essential Dirt Bike Safety Gear for Children

Gear up your child properly before they hit the start button after selecting the right dirt bike size for kids. No exceptions. Good gear prevents injuries, builds rider confidence, and keeps every ride enjoyable.

• Australian Standard-approved full-face helmets protect the head and jaw when a sudden rough patch comes.
• Off-road goggles with anti-fog lenses keep dirt, loose gravel, mud splashes, and low branches out of their eyes.
• Body armor suits, chest guards, and flexible knee pads protect vital organs and joints from scrapes and falls. 
• Sturdy off-road boots, textured gloves, and heavy-duty jerseys give a firm grip on the handlebars and save skin from painful abrasions. 

Conclusion

Choosing the right kids dirt bike comes down to your kid’s height, current experience, and their age. A manageable 50cc dirt bike is a great entry point for little beginners, while a 70cc dirt bike gives growing kids a natural step up in power. Skilled older children will thrive on a 110cc dirt bike built for real track action. Picking the right dirt bike size for kids means safer rides, growing confidence, and weekends everyone looks forward to. Just don’t skip the helmets, goggles, and chest protection on any ride. You can find all these quality options and buy kids dirt bike at Go Easy online, where Australian parents shop for top-quality off-road dirt bikes, affordable prices, and prompt nationwide delivery.

FAQs

How fast do 110 dirtbikes go?

A typical 110cc dirt bike hits top speeds between 35 and 45 mph (55 to 70 km/h) on flat terrain. However, many models feature built-in speed limiters or semi-automatic gearing, allowing parents to easily cap the top speed while kids are still learning.

What maintenance routine is required for a youth off-road bike?

You should clean the air filter after dusty sessions, keep the drive chain lubricated, and regularly check tire pressures before every ride. Swapping the engine oil every few hours of ride time also ensures long-term engine reliability.

What is the average seat height for a dirt bike?

Smaller youth dirt bikes sit much lower, usually ranging from 20 to 31 inches (50 to 78 cm) depending on the engine capacity and frame size.

How can I tell if my child has outgrown their current dirt bike size?

If your child's knees constantly bump the handlebars during turns or their feet rest completely flat on the ground with deeply bent knees, it is time to move up.