Petrol Ride-Ons for Kids by Age and Engine Size

For petrol ride-ons, match engine size to the rider, not just to their age. Our smallest petrol bike and quad are listed as 50cc and 49cc, and the quad is listed as "Suitable Size for 6-10 Years", while the larger machines are listed 12+, 13+, 14+ or 16+. Every petrol ride-on we sell is for private land only.

This guide goes through our in-stock petrol OneMoto bikes, quads and karts by engine size and listed age, then covers the safety points that matter most. Specifications are quoted from the listings. Prices and stock checked on 10 November 2026.

Safety first: private land, supervision and kit

Petrol machines are heavier, faster and louder than most electric ride-ons, so these points are not optional.

• Private land only. Our petrol ride-ons are for private land and off-road use. If you are wondering about riding anywhere else, rules vary, so check GOV.UK before you do.
• Adult supervision. An adult should be there for every ride, especially at first.
• Helmet and full protective kit. A correctly fitting helmet, plus gloves, boots, eye protection and body protection.
• Match the engine to the rider. Choose by the rider's size, weight and ability. As a general rule, start with the smallest suitable engine and move up only when they are confident.
• Read the manual. Check the controls, the brakes, the fuel and oil guidance and the maintenance schedule before the first start.
• Ask us if unsure. If a listing does not answer your question, ask us before you order.

Small engines: 49cc and 50cc

These are the entry point in our petrol range, and all three are 2-stroke. They are the machines to look at first for younger or newer riders.

• OneQuad PX1S: 49cc 2-stroke, automatic, listed as Suitable Size for 6-10 Years, £349.
• OneATV PX1S: 50cc 2-stroke, automatic, listed as 12+, £329.
• OneMX PX1S: 50cc petrol motorbike, 2-stroke, listed as 14+, £269.

Note that the OneMX PX1S is listed 14+ despite its small engine, so a bike of this size is not simply a child's first machine. Read each listing's age and weight rather than assuming.

110cc: the mid-size 4-stroke choice for 6 to 13

This is where the listed ranges widen. The 110cc machines are 4-stroke and are listed as "Suitable Size for" a range of ages, which suits a child within that size band.

• OneMX PX2S 110cc dirt bike: 4-stroke, listed as Suitable Size for 6-12 Years, £679.
• OneATV PX2S 110cc: 4-stroke, semi automatic, listed as Suitable Size for 6-13 Years, £679.
• OneQuad PX3SA 110cc: 4-stroke, automatic, listed as Suitable Size for 6-13 Years, £699.

"Suitable Size for 6-12 Years" is a size guide, not a promise that every six year old can handle the machine. A small or inexperienced six year old may do better on the smaller engines above, or on an electric model.

98cc to 163cc: karts and larger youth machines

• OneKart PX3S 98cc go-kart: 4-stroke, automatic, listed as 13+, £749.
• 125cc ATV: 4-stroke, 3 forward and 1 reverse, listed as 14+, £1140.
• OneMX PX3S 140cc dirt bike: 4-stroke, 4 gears, listed as 14+, £849.
• OneATV PX5S 163cc buggy: 4-stroke, forward, neutral and reverse, listed as 12+, £1095.

200cc and above: older riders

These are listed 13+, 14+ or 16+ and are the most powerful machines in the range. They are better suited to older, taller riders with experience.

• OneQuad PX8S 200cc: 4-stroke, forward, neutral and reverse, listed as 14+, £1589.
• 212cc 2-seater UTV buggy: 4-stroke, automatic, listed as 13+, £1299.
• OneMX PX4S 250cc: 4-stroke, 5 gears, listed as 14+, £1689.
• OneATV PX6S 250cc: 4-stroke, 4 forward and 1 reverse, listed as 16+, £1889.
• OneMX PX5S 300cc: 4-stroke, 5 gears, listed as 14+, £2489.

In-stock petrol bikes, quads and karts compared

Browse the full ranges in kids' petrol quads and ATVs, kids' petrol ride-on motorbikes and kids' petrol ride-on toys. The wider petrol ride-ons and go-karts collections list more, and the OneMoto range shows everything under that brand.

Choosing by age

5 and 6 year olds

Our smallest petrol machine for this age is the 49cc quad, listed as Suitable Size for 6-10 Years. For a five year old, an electric model is usually the more sensible starting point, so see our guide for 4 to 5 year olds.

7 to 10 year olds

Look at the 49cc quad and the 110cc machines listed Suitable Size for 6-12 or 6-13 Years. Check the size and weight against your child and begin with the smallest engine that fits. Our guides for 7 year olds, 8 year olds and 9 to 10 year olds cover the electric options.

11 to 12 year olds

The 110cc bikes and quads sit in this range, and the machines listed 12+ become relevant. See the guide for 11 to 12 year olds for comparison.

13 and over

Larger engines are listed 13+, 14+ and 16+. Our teenager guide compares electric alternatives with listed weights. Younger riders are covered in the guides for 1 to 2 year olds, 3 year olds and 6 year olds.

Petrol or electric

As a general rule, petrol engines give more power for their size and are refuelled rather than recharged, but they need more maintenance and make more noise. Electric machines are quieter, simpler to run and often easier for a newer rider to learn on.

Neither is automatically better. If you want to start with less power, the OneMoto OneMonkey EX1S is a 24V electric bike listed as 8+ with 50KG listed, and the electric quads and kids' ride-on motorbikes collections show more. Electric OneMoto dirt bikes are in the OneMoto range.

See the range in person

Judging size on screen is hard. Our showroom experience page explains how to see the range.

Find the right size

Start with the rider's size and experience, then the smallest suitable engine. Browse petrol ride-on motorbikes or petrol quads to compare. Free mainland UK delivery applies.

Frequently asked questions

What petrol dirt bike is suitable for a 10 year old?

The OneMX PX2S 110cc is listed as Suitable Size for 6-12 Years. Check the listed size and weight against your child and keep to private land with adult supervision and full protective kit.

What petrol motorbike is suitable for a 12 year old?

The 110cc OneMX PX2S is listed as Suitable Size for 6-12 Years. Larger bikes such as the 140cc OneMX PX3S are listed 14+, so choose by the rider's size and ability, starting with the smallest suitable engine.

What petrol quad bike is suitable for a 7 year old or a 10 year old?

The 49cc OneQuad PX1S is listed as Suitable Size for 6-10 Years, with the 110cc quads listed as Suitable Size for 6-13 Years. Begin with the smallest engine that fits the child.

Is there a petrol motorbike for a 5 year old?

Our petrol range starts at a quad listed as Suitable Size for 6-10 Years, so we do not list a petrol motorbike for a five year old. An electric ride-on is usually a better first step at that age.

Can a 12 year old ride a dirt bike on the road?

Our machines are for private land only. Rules for other places vary, so check GOV.UK before riding anywhere other than private land.