why does the back wheel spin but will not run when weight is on the bike

Because Razor changed the bike..no suspension..mine did that on the first day. Junk! Razor should be ashamed..

does this bike have training wheels?

Nope, I am going to get some for my son. He couldn’t ride a regular bike but does much better on this. He won’t put his feet in the pegs, he lets them drag a bit. So training wheels would be a good idea.

What age chikld is this designed for?

My kids could ride this about age 8) when we got it and my oldest was 8). I would say being able to ride this bike is as more about being able to maneuver/support the weight while not at a 10+ mph speed vs anything relating to height or etc. I’m a 5’7”, 120# woman and it’s short for my legs but zips me around easily. My husband is 220? The bike was enthusiastic but was able to manage him as well. I would consider the weight of the bike (85# or more?) and consider whether there will be anyone available to help your kiddo get the bike upright if it tips. Maneuvering the bike through a tight space in the garage is a challenge too (size + weight). Staying upright on these dirt bikes is fairly effortless - easier than riding a bicycle. We also have the blue/white version and it also lugs my adult weight just fine, but it is def sized for a little kid. The bikes are just small. Short. They handle weight. They don’t feel like a real dirt bike or bicycle ergonomically. My 2 yo, 65 lb golden can outrun the bikes. Even going downhill where we maybe hit 20-25 mph? It’s just not fair we humans have to be so slow - no wonder we love roller coasters and these little razor bikes. Bahaha. Anywho: if your kid is 8ish - this size will technically work for them. 9? For sure. It depends on your kiddos personality and if they’ll be scared to take off or not. Again: it’s easier than riding a bike. Very heavy.

how tall is the dirt bike

My son is 3. It is 15" from the ground to his crotch. He can touch the ground on both sides when standing on his toes. Not tippy toes but far from flat footed.

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Razor MX350 Dirt Rocket Electric Bike for Kids Ages 8+, 140 lb Max Weight, Blue – 24V Battery, Up to 14 Mph, 30-Min Ride Time on High Speed, Twist-Grip Throttle, Spoked Wheels w/ 12” Pneumatic Tires

Razor MX350 Dirt Rocket Electric Bike for Kids Ages 8+, 140 lb Max Weight, Blue – 24V Battery, Up to 14 Mph, 30-Min Ride Time on High Speed, Twist-Grip Throttle, Spoked Wheels w/ 12” Pneumatic Tires

Product ID: 1283244

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⚡350W high-torque motor

🏁Up to 14 mph top speed

🔋24V battery, 30-min runtime

Description

🏍️ Ignite the next-gen dirt legend — ride fast, ride fearless!

GRIP GO TIRES - 12-inch pneumatic knobby tires provide serious traction on dirt paths and playground slopes.
PRECISION CONTROL - Twist-grip throttle and hand-operated rear brake offer intuitive handling and confident command.
THRILL READY POWER - 350-watt chain-driven motor delivers adrenaline-pumping torque for backyard motocross mastery.
BUILT RUGGED FOR PLAY - Steel frame with double-crown fork and shatter-resistant fairings withstands every hill and thrill.
ENDURANCE THAT KEEPS UP - Up to 30 minutes of continuous ride time means more adventure, less downtime charging.

The Razor MX350 Dirt Rocket is a kid-sized electric motocross bike designed for ages 8+ with a robust 350W motor and 24V battery delivering speeds up to 14 mph and 30 minutes of continuous ride time. Featuring a durable steel frame, adjustable handlebars, twist-grip throttle, and knobby 12-inch pneumatic tires, it offers authentic dirt bike performance and safety for young riders up to 140 lbs.

Specifications

Is Assembly Required	Yes
Material Type	Alloy Steel, Plastic, Metal, Rubber
Theme	Bike
Item Weight	25 Kilograms
Size	10-12 inches
Item Dimensions L x W x H	44.5"L x 24.5"W x 31"H

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