Exhaust systems

125cc Exhaust Systems
- Find the best sport exhaust for your motorcycle

With us you can find the best sport exhaust für your 125cc motorcycle. Because: riding a motorcycle is a unique experience. A feeling of freedom and escape from everyday life. In addition to the feeling of power and acceleration, the sound is crucial. A sport exhaust that gives you an orchestra of bass and throaty sound is a must for every 125 tuner. Here you will find our wide selection of the best exhausts on the market. In our guide you will find tips for choosing the perfect sport exhaust for your bike.

buying 125cc sports exhaust

When buying a sports exhaust for your 125cc bike, there are a few points to consider. So that you end up buying the best system, we have put together a guide for you.
Before buying, you should inform yourself a little and ask yourself the following questions: What is your main goal for the exhaust system? Do you want to perfect the look of your bike, maximize the sound or turn on the power? How big is your budget? Is there an exhaust manufacturer you particularly like? Depending on where you put the emphasis here, it is advisable to buy a different system. Once you know what you want, you need to choose the right exhaust model for your 125cc bike. In our Radical online store we have a bike filter that always shows you the right parts for your bike. As the expert for 125cc tuning in Germany we are always ready to help you with words and deeds. If you have any questions, you can easily reach us and be sure to get the perfect sport exhaust in the end.

Sound tuning with a sports exhaust

In the first place with a new exhaust system is of course their sound. This should sound deep and mänlich. Nothing in the exhaust should rattle, rattle or sound metallic. This sound nuance is not easy to achieve, and of course everyone has their own taste. That's why there are so many different sports exhaust systems, all of which sound different. The same model can sound different on a KTM Duke 125 than it does on a Yamaha MT 125 or YZF-R 125, which is why you can find various sound tests on our YouTube channel to help you make your choice.

What does a dB killer

do?

It is also important which “modifications” you can make to the exhaust. A simple Möglichkeit of the sound tuning results from the so-called db-killer (decibel killer). This part is also known as a db-eater or db-absorber and ensures that the volume of your sports exhaust is reduced. This happens über an increase in back pressure and is usually associated with a slight reduction in engine power.

Should you ever go back to the track with the exhaust, you must necessarily enjoy the full sound enjoyment of your Arrow, Giannelli, LeoVince, Radical or Akrapovic sport exhaust without dB-killer. To do this, you can remove the “dB-Killer” for most manufacturers. From 2017, however, with the introduction of the Euro 4 emissions standard, it was decided to make all accessories exhaust systems “tamper-proof” at this point. For example, on Arrow sport exhausts, this is accomplished by means of a small dotted sheet. This you must simply break out - What you do of course only on the race track ;)

A great advantage of our Radical Racing exhaust systems is that you über the pressed-in “locking bolt” and the exchange for different dB-killer can vary the volume. So you become a sound designer für your machine.

Optical tuning with a sports exhaust

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After the sound, of course, the appearance of a sports exhaust is quite decisive. It is important that you like it and that it fits your motorcycle. Because the individual exhaust systems are not only different in their design, their appearance also varies from bike to bike. So it's best to look at different systems and if you like one, look for pictures of this sport exhaust on a 125 of your type.

The schöne with Optiktuning is yes that it gives your machine an individual look. There are rather angular, very distinctive exhaust systems, then again there are sporty, curved. Of course, the materials used also play a major role. Carbon parts are particularly sporty and high-quality. You should always make sure that it is real carbon and not just a carbon look. Stainless steel systems with a metallic look are also suitable. If you're looking for something really special, take a look at our Black Line.

Increased performance through a sports exhaust

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With 4-strokes is true that you have only limited possibilities to increase the power üvia the exhaust, but 1.5 hp is possible. That is still about 10% more power, compared to the original exhaust. In addition, not only the increase in power through a sports exhaust is interesting, but also the increase in torque. Especially there, exhaust systems from manufacturers such as Arrow, Giannelli or our Radical sport exhaust systems have the nose far ahead of the original. Keep in mind, however, that the catalytic converter must almost always be removed. More on this topic can be found below under the heading „When is a sports exhaust legal?“

So it is - in addition to the change to a BigBore 160cc / 180cc kit - one of the few ways für performance tuning that you can make on your 125cc bike. On our Youtube Channel you can view performance charts of different exhaust systems, combined with different engine rüderns. Often it is also helpful to exchange with other bikers, what they für experiences with the power increase made.

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When is a sports exhaust legal?

An important question in relation to a new exhaust system is the legalityät. You want to know finally whether you are still allowed to drive on public roads after an exhaust tuning, or whether your machine now goes on the race track.

Compared with many other components, which are less frequently subjected to tests, the legality of a sports exhaust system is usually the first thing that police or TÜV check. In this case, it is sufficient for the sports exhaust to have a clearly visible E-number. It is not necessary to carry papers, except in Austria. Many sport exhaust manufacturers such as Arrow, Giannelli & Co. often Racing-Krümmer offered separately. These do not contain a catalytic converter or a preparation for it. Thus, in most cases, the performance is slightly increased as well as the volume of the exhaust increased.

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The best sport exhaust for your bike

As individual as you are, so is your bike. First you buy a brand that you particularly like. Whether it is a Yamaha MT or WR, a KTM Duke or a Honda machine, depends entirely on your taste. Over time, most riders then individualize their bike. So that one person's CBR 125 doesn't have the same look as another biker's. When buying a sports exhaust is therefore also always important that it fits exactly to your 125 machine.

So you can not say across the board: „This is the best exhaust für a Yamaha 125 or that exhaust system is optimal für the KTM Duke“. What you can do, however, is to look at the basic characteristics of a brand and a bike and thus learn which exhaust variants are most likely to be suitable! Therefore, here are some basics about the most popular 125cc engine rädern.

The best sport exhaust for Yamaha MT 125

When buying an exhaust system for your Yamaha MT 125, you should take into account its minimalist design. The perfect sport exhaust berücksichtig that it is a lightweight naked bike with very distinctive, aggressive shapes.

Your seat on the MT 125 is pleasantly upright and with the sporty and very angular designed tank, you have a visual highlight of the Yamaha directly in front of you. Since this tank is also a central eye-catcher of your machine, it can be a good idea with an equally striking exhaust system to create a counter-accent at the rear of your machine. You create so a consistently aggressive-futuristic design language and are definitely the eye-catcher on the road - or race track.

In our store here you will find suitable exhaust systems for the Yamaha MT 125. Wähle above in the bike filter your machine and off you go.

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The best sport exhaust for Yamaha WR 125

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With this machine you are in the supermoto and cross machines gold right. The best sport exhaust for your Yamaha WR 125 should definitely take into account its field of application. Cool stunts like wheelies, stoppies and the like are their specialty. It feels good on the road and even more so off-road. So your exhaust system should be as robust and sporty as your Yamaha!

The sound of your sport exhaust is damn important with the WR. Pithy rattling must be here. With a dynamic cross machine you do not need a quiet hum. We recommend a decent bass, so that you also notice what für a horny bike you fährst there.

We recommend in addition to our Radical Racing exhaust systems also the brands Gianelli, LeoVince or Takkoni. These come with your Yamaha WR as Slip-On Ausführung and are thus quite günstig. It is then not a complete system. You continue to use some original parts of your WR 125 such as the catalytic converter and Krümmer.

In our store here you will find suitable exhaust systems für the Yamaha WR 125. Wähle above in the bike filter your machine and off you go.

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The best sport exhaust for KTM Duke 125

The KTM Duke 125 is the most popular naked bike in the 125cc range. It has great driving characteristics, is economical in consumption, very robust and has an insane look. When it comes to choosing the best sport exhaust for the Duke, you have pretty much free choice. We have found few exhausts that do not look good on this bike!

You should therefore look above all that the sound is exactly what you hören möchtest and the system fits your other customizations. In the sports exhaust of our house brand Radical Racing, we have made sure that it further extends the distinctive, sporty design of the machine and tickles out the optimal sound.

To help you choose the right exhaust, we have made a video in which we compare different exhaust systems für the KTM Duke 125 from Giannelli, Leo Vince, Arrow and Radical Racing für you.

In our store here you will find suitable exhaust systems for the KTM Duke 125. Wähle above in the bike filter your machine and off you go.

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The best sport exhaust for Yamaha YZF R125

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As one of the most powerful supersports in the 125cc class, the Yamaha YZF R125 also needs a correspondingly sporty exhaust system. The whole bike screams for the racetrack, since you should purchase an exhaust system in any case not something boring or clunky.

Both the look and the sound you should be oriented to their racetrack character. Carbon parts such as on our Radical Racing GP Carbon or even a black matte surface as in our Black line will meet this requirement.

Your Yamaha YZF R125 was born für the sporty driving on the road and race track and that should underline the exhaust system. In our store here you will find suitable exhaust systems for the Yamaha YZF R125. Select your machine in the bike filter above and off you go.

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The best sport exhaust for Honda CBR 125

The Honda CBR 125 is the absolute workhorse among the 125cc bikes. It is cheap to buy and maintain and absolutely reliable. This should also be your starting point when choosing the best sport exhaust for the CBR. You should pay attention to quality and high quality workmanship of the exhaust system. So that your exhaust is as reliable as your Honda.

You will find a decent selection of reputable manufacturers. Best you look at different models in combination with the CBR and decide what fits best to your machine. In our store here you will find suitable exhaust systems for the Honda CBR 125. Select above in the bike filter your machine and off you go.

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The best sport exhaust für Honda MSX 125

The fun bike in streetfighter optics is the Honda MSX 125 often called. And exactly this fun factor should also be in the foreground when choosing your sport exhaust. Fun with the look, fun with the sound should be the motto. The standard exhaust of the Honda is a bit boring and does not fit so well with the otherwise crisp 125.

Look for a sports exhaust that better emphasizes the dynamics and sportiness. Dafür are systems with carbon parts or in matte optics particularly well suited.

In our store here you will find suitable exhaust systems for the Honda MSX 125. Wähle above in the bike filter your machine and off you go.

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The best sport exhaust for Beta RR 125

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Admittedly, the Beta RR 125 makes already from the house neat thing with the sound! Especially if you take out the dB-killer is the volume impressive. For the „finer“ Gehör can be tuned with an appropriate sports exhaust on the Beta RR but also the sound. Unfortunately, there are currently still hardly corresponding products of the well-known brands.

As soon as something happens here in the market and there are exciting sports exhausts für the Beta RR, you will find them in our range. In our store you will find more tuning and spare parts for your Beta. Select your machine in the bike filter above and off you go.

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Sport exhaust and exhaust system cheaper buy

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If you're wondering where you can buy a sport exhaust cheaper and get the best price, Radical Racing is the place to go. We not only have the largest selection of exhaust systems for 125cc motorcycles, we also offer you always the best price!
We always try to offer the current best price. But should you find an item from our range but once somewhere else günstiger, just contact us and we adjust our price für you ;) Even 14 days after purchase. (Excluded from this is only the brand Akrapovic).
So if you want to buy your new sport exhaust cheapest, you are at Radical exactly right. We will be happy to advise you on your choice.