Best Electric Dirt Bikes for Kids and Teens: 5 Picks by Age

For most kids 8 to 13, the Razor MX350 is the electric dirt bike to get: 24V, knobby air tires, a hand brake and a parent switch that holds it at 10 mph. For ages 5 to 7, the smaller Razor MX125, and for teens, the 36V SX500 or MX650.

1. #1Razor MX350 Dirt Rocket My Pick
2. #2Razor MX125 Dirt Rocket First Bike
3. #3Hiboy DK1 36V Lithium
4. #4Razor SX500 McGrath Teens 14+
5. #5Razor MX650 Dirt Rocket Teens 16+

Under 5? A 6V toddler motorcycle fits better, see the best ride-on motorbikes for kids. Want four wheels? See the best electric ATVs and quads for kids.

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How to Choose a Kids’ Electric Dirt Bike

Age and weight first

Razor sizes its Dirt Rockets by age: the MX125 for 5 and up, the MX350 for 8 and up, the SX500 for 14 and up and the MX650 for 16 and up. Weight limits climb with them, from 110 lb to 220 lb.

Size up only when your kid fits the age and the weight. A bike that’s too big is harder to hold up, and harder to stop.

A speed limit you can set

The MX125 and MX350 have a parent high and low switch, and Razor ties the high setting to an older age: 7 and up on the MX125, 13 and up on the MX350. The Hiboy DK1 has three modes, 5, 7.5 and 15.5 mph.

Brakes

The smaller Razors use a hand-operated rear brake, and the SX500 and MX650 add dual disc brakes. Practice braking at low speed before anything else.

Battery and charging

Razors use sealed lead-acid batteries and take up to 6 to 12 hours to charge, while the Hiboy’s lithium battery charges in 4 to 5 hours. Charge only with the charger that came with the bike, as our charging guide explains.

Where they’ll ride

Razor says its Dirt Rockets are for flat, dry surfaces, not trails or hills. Plan on a big backyard or a private dirt patch, never the street.

The 5 Best Electric Dirt Bikes for Kids and Teens

1. Razor MX350 Dirt Rocket

The MX350 is the classic kids’ electric dirt bike, and the one I’d start most 8- to 12-year-olds on. Two 12V batteries power a 250W chain-driven motor, with a twist-grip throttle, 12-inch knobby air tires and a hand-operated rear brake.

A parent switch under a screwed cover sets it to 10 or 14 mph, and Razor says the high setting is for 13 and up. It’s rated to 140 lb, weighs about 48 lb, and runs 30 to 60 minutes per charge.

The Razor MX400 shares the same motor, battery and speeds in a heavier build, at about 57 lb. See my MX350 review for more.

Verdict The one to get for a kid 8 to 13 on flat, dry ground. Skip it for trails or a rider under 8.

2. Razor MX125 Dirt Rocket

Razor’s smallest Dirt Rocket and the right first bike for 5- to 7-year-olds. It’s a 12V 5Ah, 100W bike at about 30 lb, with a twist throttle, a hand rear brake and 12-inch air tires.

It runs at 5 mph on low and 8 mph on high, and Razor says high speed is for 7 and up. Expect 40 to 80 minutes per charge, up to 6 hours to recharge and 12 hours for the first charge.

Verdict A light, slow first dirt bike for 5 to 7. A strong 8-year-old will want the MX350.

More in my MX125 review.

3. Hiboy DK1 36V

The non-Razor pick, with a 36V lithium battery and a 300W motor. It has three speed modes, 5, 7.5 and 15.5 mph, a hydraulic front fork and a steel frame, and it weighs about 38 lb.

Hiboy makes it for ages 3 to 10 and riders to 140 lb, and says it ran up to 90 minutes in its own test with an 88-lb rider at 9.3 mph. Lithium also means a 4- to 5-hour charge instead of a Razor’s 12.

The catch is that top mode. 15.5 mph is a lot for a small kid, so keep it in the 5 mph mode until they can brake and steer without thinking.

Verdict The pick for quick charging and long rides. Skip it if you want a bike that can’t go fast.

4. Razor SX500 McGrath

A teen bike with Jeremy McGrath graphics. Three 12V batteries make 36V for a 500W motor, good for up to 15 mph, and hand-operated dual disc brakes stop it.

Razor makes it for 14 and up and riders to 175 lb, with up to 40 minutes per charge. At about 96 lb, it’s a real bike to push around, so it’s for teens, not tall 10-year-olds.

Verdict The step up for a teen who’s outgrown the MX350. Skip it under 14.

Full details are in my SX500 review.

5. Razor MX650 Dirt Rocket

Razor’s biggest Dirt Rocket, made for 16 and up and riders to 220 lb. A 36V 12Ah setup drives a 650W motor to up to 17 mph, with front and rear suspension, dual disc brakes and a 16-inch front tire.

It’s the fastest bike here, so it’s an older teen’s bike, and our fastest ride-ons list compares it with karts and quads. Run time is up to 40 minutes.

Verdict For a 16-year-old or a parent who wants to ride too. Skip it for anyone younger.

Safety and Sizing

CPSC’s helmet chart points to a motocross-style helmet for dirt bikes. Sizing and the rest of the gear are in my safety equipment guide.

FAQ

Ages 5 to 7, the MX125. Ages 8 to 13, the MX350, or the Hiboy DK1 if fast charging matters, and teens, the SX500 at 14 or the MX650 at 16.