Is 20 mph too fast for a child?

It is fast for a kids' kart. Use the lower speed settings and a helmet, and keep younger or newer drivers on the slow mode until they are comfortable with steering and braking.

How long does the battery last per charge?

Baja claims 10 to 15 miles, which depends on rider weight and terrain. Expect the low end on grass, hills or full throttle, and a 4 to 6 hour recharge on the lead-acid pack.

Can an adult drive it?

No. The weight limit is 120 lbs, so most adults and older teens exceed it. It is built for kids and lighter riders.

Does it come with a battery and charger?

Yes. The 48V 12Ah lead-acid battery is included, and the kart charges from a standard outlet in about 4 to 6 hours.

How does it handle dirt and grass?

The four wide wheels and 20 mph top speed suit packed dirt, grass and gravel. There is no listed suspension, so very rough ground will feel harsh.

How does it compare with a petrol go-kart?

It is quieter, needs no fuel and starts instantly, but it is slower to refuel and has a lower weight limit. Petrol karts suit bigger riders and longer sessions.