Dr. Jekill & Mr. Hyde Auspuff - SpeedM.

Dr. Jekill & Mr. Hyde exhaust system with valve control – road-legal and suitable for the Triumph Speedmaster 1200

Dr. Jekill & Mr. Hyde – arguably the best-known manufacturer of valve-controlled motorbike exhaust systems with road approval / E-mark (no need for separate registration – just fit it, ride it and enjoy).

Please note regarding Euro 5+ models:
The exhaust system is officially approved only for the 2025 model year. However, it also fits the brand-new model from the 2026 model year onwards. 
For more information on exactly what this means, just give us a call and we’ll fill you in.

AllJekill & Hyde systems come with an electronically controlled valve in the rear silencer. This allows you to ride your Triumph Bonneville Speedmaster legally in three different sound modes – from pleasantly quiet to a really lovely, deep, bass-heavy sound.
And yes – the sound is truly exceptional for a legal exhaust system. We’ve heard it live on lots of bikes – it’s simply fantastic.

The Jekill & Hyde valve-controlled exhaust systems – click here for more info

See the sound video below the description

Silver & Black – available immediately from stock 

With this exhaust, you can choose between brushed silver stainless steel or black wrinkle-coated (the black coating is a true matt finish and very durable).

Available straight from stock
Here at Classicbike-Raisch, we don’t wait for a customer order before ordering the exhausts. 
To ensure we can supply you with that awesome sound as quickly as possible, we almost always have every version of the Dr Jekyll exhaust system in stock! 
We also offer free delivery within Germany.

Fitting instructions & installation at Classicbike-Raisch

Due to the electronic exhaust valve control system, installation is slightly more complex than with a conventional exhaust. 
In the downloads section of this product description, you’ll find the assembly instructions as a PDF. This will allow you to get an overview and decide whether you feel confident enough to carry out the installation yourself.

Fitting at Classicbike-Raisch
Don’t feel confident enough to fit it yourself, or simply don’t fancy doing it? 
No problem! Feel free to contact us by phone or email to arrange an installation appointment at our specialist workshop – we’re happy to help! 
Assembly time: approx. 3–4 hours

Fancy even more sound and power? 

Sound
Is the sound with the flap open still not loud enough for you? 
Then an additional X-pipe (catalyseur replacement) is just the thing for you. This makes the bike a fair bit louder and gives it a much more powerful sound (not legal). The great thing, though, is that the motorbike is still very quiet with the flap closed, so you won’t get into any trouble.
You’ll find the X-pipe amongst the accessories listed below this description.

More Power
Would you like to give your Triumph a bit more power – or perhaps even a significant boost? 
No problem – have a look at our Power Kits in various stages.

CLICK HERE FOR THE BOBBER POWER KITS

Euro Standard & Model Year Guide 

You can find your motorbike’s Euro standard on your vehicle registration certificate or the COC document.

Euro 4: Model years 2017–2020
Euro 5: Manufactured between 2021 and 2024
Euro 5+: Year of manufacture 2025 – 

Cookie-Einstellungen öffnen