Supermoto Umbau

Supermoto Conversion Guide – Parts, Setup and Tips for KTM, Husqvarna & GasGas and more

Supermoto Conversion – The Complete Guide

Converting an enduro bike to a supermoto is one of the most popular modifications for KTM, Husqvarna, and GasGas models. With the right components, a classic enduro becomes a street-legal supermoto bike with significantly improved handling on asphalt.

In this guide, we show which parts are really useful when converting a supermoto and what you should pay attention to.

Supermoto rims – The foundation for every setup

The most important step in a supermoto conversion is finding suitable supermoto rims .

Typical sizes:

In front
17 x 3.5 inches

Rear
17 x 4.25 or 5.0 inches

The smaller wheels significantly change the driving characteristics:

  • more stable on asphalt

  • more precise steering

  • better control when braking

Many riders combine the rims with sporty street tires or supermoto slicks for maximum performance.

Large brake system – More control during hard braking

Supermoto riders brake much more aggressively than enduro riders. Therefore, many opt for a more powerful braking system.

Components from MotoMaster are very popular.

Typical upgrades include, for example:

These components ensure:

  • significantly stronger braking performance

  • precise dosing

  • more control during sporty driving

Especially when riding Supermoto on kart tracks or narrow roads, strong brakes are a great advantage.

Left Hand Brake Setup (LHB)

Many supermoto riders also use a so-called left-hand brake.

The rear brake is operated via an additional brake pump on the handlebars.

Typical components:

  • additional brake pump

  • brake line

  • suitable clutch fitting

The HC1 clutch assembly is also suitable, for example, for setups where a left-hand brake is to be integrated.

Improve your clutch – Easy Pull clutch lever

Many enduro bikes have a relatively stiff clutch.

An easy-pull clutch lever significantly reduces the required hand force and ensures:

  • more pleasant operation

  • better control over the clutch

  • Less fatigue on longer journeys

Especially in Supermoto use, an easier-to-use clutch lever can make a big difference.

You can find more information about this in our Easy Pull clutch levers section of the shop.

Shorty brake levers for sporty control

Shorty brake levers are shorter than original levers and are usually operated with two fingers.

Advantages:

  • better control when braking

  • more sporty ergonomics

  • Reduced risk of breakage in falls

Many supermoto riders prefer these levers because they are a perfect match for an aggressive riding style.

LED lighting and mini LED turn signals

The lighting is also often modified during supermoto conversions.

Particularly popular are:

Mini LED turn signals offer several advantages:

  • very compact design

  • modern design

  • high visibility

Many models have an E-mark and are therefore suitable for use in road traffic.

Footrests with more grip

When riding a Supermoto, you often move around a lot on the motorcycle.

Footrests with improved grip ensure:

  • better grip

  • more control when braking

  • more stable stance when cornering

Especially when driving in a sporty style, upgrading the footrests can significantly improve the driving experience.

Side stand during supermoto conversion

The vehicle height changes after converting to supermoto rims.

Often the original side stand is too long and the motorcycle stands too upright.

An adjustable side stand can be a practical solution here, as it can be adapted to different setups – whether enduro or supermoto.

Conclusion – The perfect Supermoto setup

A well-built supermoto bike consists of several coordinated components.

These include, among others:

With the right components, an enduro bike becomes an extremely versatile supermoto motorcycle with lots of riding fun on the road and on the kart track.

FAQ – Frequently Asked Questions about Supermoto Conversion

What do you need for a supermoto conversion?

The following parts are used for a typical supermoto conversion:

Depending on the setup, additional components such as a left-hand brake or special levers can be installed.

What rim size does a supermoto have?

The most common Supermoto rim size is:

In front
17 x 3.5 inches

Rear
17 x 4.25 or 5.0 inches

These dimensions ensure very precise handling on asphalt.

Do you need a bigger brake for a supermoto?

Many riders upgrade to a larger brake disc or a more powerful braking system, as braking is significantly more intense in supermoto riding than in off-road use.

Is a supermoto conversion legal?

That depends on the parts used and their respective approvals. Components with the appropriate markings or registration can be used on public roads.

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