Razor MX350 Review (2026): Speed, Age and Battery Life

The Razor MX350 Dirt Rocket is a small electric dirt bike for kids, with a 24V battery, 12 in tires and a parent-set speed switch. It’s the middle of Razor’s Dirt Rocket line, between the tiny MX125 and the teen-sized MX500 and MX650.

This review is research-based, built from Razor’s product page and owner’s manual as of November 2026. For how it fits the bigger picture, see our age-by-age guide to kids’ electric dirt bikes.

Budget first e-moto

Razor MX350 Dirt Rocket

Razor · Price tier $ (under $500)

Who it's for: Kids 8 and up (low mode) or 13 and up (high mode), up to 140 lb, riding on private land or a legal off-road area.

The MX350 keeps things simple: twist the throttle, and a chain-driven rear motor does the rest. Razor’s parent-controlled speed switch sits under a cover you need a Phillips screwdriver to open, so kids can’t change it themselves.

At about $350, it’s one of the least expensive ways into a real dirt-bike shape, with a steel double-crown fork, riser bars and folding foot pegs.

Ages: 8+ low mode, 13+ high
Max rider: 140 lb
Top speed: 10 / 14 mph
Battery: 24V sealed lead-acid
Run time: Up to 60 min low, 30 min high
Wheels: 12 in pneumatic
Brakes: Rear hand brake
Weight: 48.3 lb

Pros

Parent-set 10 mph low mode under a screwed cover
About $350 (November 2026)
Pneumatic 12 in tires and a steel frame
Certified to the UL2272 electrical safety standard

Cons

Sealed lead-acid battery: heavy, slow to charge, 1 to 2 year life
Rear hand brake only and no listed suspension
Ships in 14 mph high mode
90-day warranty, no extended option

Check price on Amazon

Specs explained

Speed. High mode reaches 14 mph and low mode 10 mph. Razor recommends every rider learn in low, and rates high mode for 13 and up.

Battery and run time. Two 12V sealed lead-acid batteries make 24V. Razor’s product page says up to 60 minutes in low and 30 in high, while the manual says up to 30 minutes of continuous riding, so plan on the lower figure.

Charging. The first charge takes 12 hours, and later charges up to 12 hours “even if the light turns green.” Razor says not to charge for more than 24 hours, and that batteries should be charged only under adult supervision.

Size and weight. The bike weighs 48.3 lb and measures 43.7 x 28 x 21.7 in assembled. Razor doesn’t publish a seat height, so check the fit in person if you can.

Brakes and suspension. One hand-operated rear brake, and no suspension listed. Fine at 10 mph on smooth dirt; less forgiving on rough ground.

What Razor’s manual says about safety

Razor’s manual warns that parental supervision is necessary and that “any rider unable to fit comfortably” shouldn’t ride. It calls for an approved helmet with the chin strap buckled, elbow and knee pads, and closed-toe lace-up shoes, and recommends long sleeves, long pants and gloves.

It also says to stay “safely away from cars and motor vehicle traffic,” ride one at a time, and avoid night, wet or icy riding. For full off-road gear, see our kids’ dirt bike gear checklist and best youth dirt bike helmets.

How it compares

Product	Ages (maker)	Max rider	Top speed	Battery	Brakes	Price tier	Link
Razor MX125 Dirt Rocket	5+ low mode, 7+ high	110 lb	5 / 8 mph	12V sealed lead-acid	Rear hand brake	$ (under $500)	Amazon
Razor MX350 Dirt Rocket	8+ low mode, 13+ high	140 lb	10 / 14 mph	24V sealed lead-acid	Rear hand brake	$ (under $500)	Amazon
Razor SX350 McGrath Dirt Rocket	8+ low mode, 13+ high	140 lb	10 / 14 mph	24V sealed lead-acid	Rear hand brake	$ (under $500)	Amazon
Razor MX650 Dirt Rocket	16+	220 lb	17 mph	36V sealed lead-acid	Dual disc	$$ ($500 to $1,000)	Amazon
STACYC 20eDRIVE	9 to 12	Under 115 lb	About 10 / 15 / 20 mph	36V lithium-ion, 6Ah	Hydraulic front and rear	$$$ ($1,000 to $3,000)	Amazon

The MX125 is the step down for kids 5 and up, at 8 mph. The SX350 McGrath is the same bike with different styling. The MX650 is for 16 and up; see our Razor MX650 review, and the Razor MX500 review for the 14+ middle step.

The STACYC 20eDRIVE is a lighter (33 lb), pedal-free electric balance bike for ages 9 to 12 with a lithium battery and hydraulic brakes, at several times the price.

Who should buy it

Parents of kids about 8 to 12 who want a low-cost first motorized dirt bike.
Families riding on private land or a legal off-road area, at a gentle pace.
Anyone who wants a speed limit the child can’t change.

Who should skip it

Kids near or over 140 lb, or confident riders who’ll outgrow 14 mph quickly.
Families who want longer rides or quick recharges: lead-acid needs up to 12 hours.
Anyone riding on rough trails, where the lack of suspension and single rear brake show.

Electric dirt bikes for kids: the age-by-age guide
Best electric dirt bikes for 10-year-olds: our picks
Razor MX650 review: the 16+ Dirt Rocket

Frequently asked questions

How fast does the Razor MX350 go?

Up to 14 mph in high speed mode, which is the default, and 10 mph in low mode. A parent sets the mode with a switch under a screwed cover.

What age is the Razor MX350 for?

Razor rates it 8 and up in low speed mode and 13 and up in high speed mode, with a 140 lb rider limit. Razor adds that age is only an estimate and riders must fit the bike comfortably.

How long does the Razor MX350 battery last?

Razor's product page says up to 60 minutes in low mode and 30 in high, and its manual says up to 30 minutes of continuous riding. A full recharge takes up to 12 hours, and Razor puts average battery life at 1 to 2 years.

What is the difference between the Razor MX350 and SX350?

The SX350 McGrath is the same platform with Jeremy McGrath motocross styling. Speeds, ages, rider limit and battery match; Razor lists a 250 W motor for the SX350.

Does the Razor MX350 have suspension?

Razor doesn't list any suspension for the MX350. The bigger MX500 and MX650 have it.