Supermoto 125, 300 o 450: Which one should you choose to start with?

You’ve got your motorcycle licence and you want a supermoto, but one question keeps running through your mind: should you start with a 125, go straight for a 300, or choose a 450? Here's some pros and cons.

What Does “Supermoto” Really Mean?

A motorcycle known as supermoto is born from the combination of the enduro world and road riding.

It features:

• 17-inch wheels;
• road tyres;
• an upgraded front braking system;
• stiffer suspension;
• a high and forward riding position;
• low weight;
• longer gear ratios.

These characteristics make a supermoto extremely responsive when changing direction and incredibly fun on tight routes, twisty roads and, in the case of competition models, on the track.

125cc Two-Stroke Supermoto: The Best Choice for Learning

For many riders, a 125 is the smartest and most affordable starting point.

It does not offer the same power as a 300 or a 450, but it allows you to learn the fundamentals of riding without immediately paying the price for every mistake. 

With a 125, you can work on clutch control, throttle application when exiting a corner, precise gear changes, brake modulation and body positioning.

Advantages of a 125cc Supermoto

A 125 teaches you how to carry speed through corners instead of compensating with engine power on the exit. This displacement also means less maintenance and more affordable repairs compared with larger-capacity motorcycles.

300cc Two-Stroke Supermoto: The Best Compromise?

The “300” category usually consists of a 300cc two-stroke enduro motorcycle converted for road use.

Disadvantages of a 300cc Supermoto

Mistakes on a 300 can have immediate and dangerous consequences. The motorcycle requires greater sensitivity, especially in wet conditions, when setting off and through slow corners.

The power band delivered is often greater than on a 450, requiring extremely careful throttle control.

450cc Supermoto: Why It Is Not Always the Right Choice

The number 450 is something of a forbidden dream within supermoto culture.

An important distinction must be made within this category: there are road-legal enduro motorcycles converted into supermotos, and genuine competition supermotos built that way directly by the manufacturer.

The 2026 KTM 450 SMR, for example, is a 449.9cc racing supermoto with a five-speed gearbox, slick tyres and components designed specifically for the track. Despite being built exclusively as a track motorcycle, it is sometimes road registered and used on public roads, immediately demonstrating the level of performance it can offer.

Why a 450 Can Be Difficult for a Beginner

Its power output is equivalent to almost three-quarters of its weight, the throttle response is lightning-fast, and the engine braking can significantly affect corner entry, causing the rear of the motorcycle to slide.

Racing-derived engines require more frequent checks and maintenance than road-focused single-cylinder engines, considerably increasing running and servicing costs.

On the road, a 450 is not particularly practical for long journeys because of its limited range, comfort and demanding maintenance. However, it completely repays these compromises in terms of emotion, excitement and adrenaline. 

Are you ready to accept this compromise?