Electric dirt bike sizes: how to pick the right fit for kids, teens and adults

The three size classes

Wheel size is the quickest way to sort electric dirt bikes, and our shop filters use it too.

• Kids electric dirt bikes: 8 to 12 inch wheels, low seats, small motors and top speeds of about 9 to 15.5 mph.
• Mini and pit bikes: 16 inch wheels or smaller, often a 14 inch front and 12 inch rear. Listed seats sit around 27 inches. They suit teens and smaller adults, and some are much faster than their size suggests.
• Full size bikes: 17 inch wheels or larger, usually a 19 inch front. Seats run from about 30 to 36 inches, with longer suspension and more power.

Our electric dirt bike shop lets you filter by bike size and by rider: kids, teens and youth, or adults.

How to measure fit

Start with the seat height on the product page and the rider’s inseam. Measure the inseam from the floor to the crotch in bare feet. The suspension sinks a little when the rider sits, so the seat ends up somewhat lower than the listed figure.

• Seated: a new rider should reach the ground with the balls of both feet. Experienced riders often accept tiptoes.
• Standing on the pegs: the rider should hold the bars with a slight bend at the elbows, without stretching or hunching.
• Rider height range: some makers list one. Riding’times lists 4 ft 2 in to 5 ft 9 in for its GT54 bikes and 5 ft 5 in to 6 ft 3 in for its GT73 bikes.
• Weight limit: compare the maximum load with the rider’s weight in full gear.
• Bike weight: the rider should be able to hold the bike up at a stop and lift it after a fall.

Kids: first electric dirt bikes

Kids bikes are small, light and slow on purpose, and most let a parent pick the speed.

• Hiboy DK2: for ages 3 to 7, with 12 inch tires, a 38 lb weight, a rear shock, a disc brake and three speed modes of 5, 8 and 13 mph. Maximum load is 150 lb.
• Hiboy DK1: for ages 3 to 10, with 12 inch tires, a 38 lb weight, front and rear suspension, a disc brake and three speed modes of 5, 7.5 and 15.5 mph. Maximum load is 140 lb.
• NAVEE Cyber X and Cyber X Pro: 8 inch tires, a steel frame and a 5 mph safe start mode. The Cyber X tops out at 9.5 mph, and the Cyber X Pro reaches 15.5 mph and adds a rear spring.

For the youngest riders, the Hiboy BK1 electric balance bike suits ages 3 to 5. It weighs 17.6 lb and can be ridden with the power off, like a regular balance bike. See all of them in kids electric rides and our kids rides guide.

Maker figures, checked September 2026. Real range and speed depend on rider weight, terrain, temperature and riding mode.

Teens and smaller adults: mini and pit bikes

Mini and pit bikes are the step up from a kids bike, and the class with the widest spread in power. Seat heights are similar, but top speeds run from 15 mph to 50 mph, so read the speed figure as carefully as the size.

• Riding’times GT54 Safety Edition: a 27.2 in seat, 14/12 inch tires, a 4 ft 2 in to 5 ft 9 in rider height range and a 220 lb maximum load, factory-limited to 750 W and 15 mph.
• NANROBOT KD2W14: a teen and beginner trail bike with a 12 inch front and 10 inch rear wheel, three speed modes and a 265 lb maximum load.
• Surron Hyper Bee: the smallest Surron we carry, made for younger and smaller riders.
• NAVEE Storm G: 14/12 inch tires, 115.7 lb, a 265 lb maximum load and Smart Wheelie-Assist. It is listed for adult riders.
• E Ride Pro Mini R: a low 26.7 in seat but an 8 kW peak motor and a 143 lb rider limit. It suits experienced young riders and smaller adults, not first timers.

Maker figures, checked September 2026. Real range and speed depend on rider weight, terrain, temperature and riding mode.

Adults: full size bikes

Full size bikes carry taller seats, more suspension travel and much more weight. Compare seat heights carefully, because they vary by several inches.

• Riding’times GT73: a 30.3 in seat, 19 inch wheels, a 5 ft 5 in to 6 ft 3 in rider height range, a 330 lb maximum rider weight and pedals with pedal assist. Riding’times recommends it for ages 12 and up.
• E Ride Pro PRO-S: a 31.2 in seat, a choice of 16 or 17 inch wheels and 127 lb.
• Surron Light Bee X: an 830 mm seat (about 32.7 in) and a 125.6 lb curb weight.
• E Ride Pro PRO SS 2.0: a 32.7 in seat, 139 lb and a 265 lb rider limit.
• Talaria Sting R Off-Road: a 33.1 in seat and 145 lb with the battery.
• Talaria Komodo 2025: a 35.8 in seat, 21/18 inch wheels and a 216 lb dry weight, for tall, experienced riders.

Some full size models offer a seat choice. The E Ride Pro PRO 4.0 comes with a long or a short seat. To compare two popular light models, read Talaria vs Surron.

Maker figures, checked September 2026. Real range and speed depend on rider weight, terrain, temperature and riding mode.

Speed limits and parent modes

Power that matches the rider matters as much as size. Look for one of these:

• Speed modes a parent sets: the Hiboy DK1 and DK2 have three, and the NAVEE Cyber X bikes start in a 5 mph safe start mode.
• Factory limits: the Riding’times Safety Editions are limited to 750 W and 15 mph. The Talaria Sting R MX4 2024 is limited to 20 mph until it is unlocked.
• Selectable speed modes: the NANROBOT KD2W14 has three. The Altis Delta has three speed levels, and its 8 kW Delta S version is offered for first rides.

Should you buy a size up?

Buying a bike to grow into is the most common sizing mistake. A bike that is too tall or too heavy is hard to stop and balance, which knocks a new rider’s confidence and makes falls more likely. Buy for the rider today, and use speed modes to stretch the time they spend on it. When they outgrow it, move up a class.

Bigger bikes also carry bigger batteries. Our guide to electric dirt bike range explains what the battery numbers mean, and electric dirt bikes for beginners covers power and where to ride. Not sure which size fits? Send us the rider’s height, inseam and weight through our contact page.

Questions riders ask