Louder exhausts

MAK · May 3, 2023

I am booked into the International NOC Rally in Sweden in August..
To get to Sweden we will need to pass through Denmark.
Denmark seems to have very strict rules for cars and motorcycles regarding aftermarket exhausts.
My 961 2016 Commando has louder stubbiest fitted. Can anyone throw some light on this subject as I would be less than keen to receive a fine or indeed have my precious Norton seized and crushed.!

Fast Eddie · May 3, 2023

I very much doubt they could do anything so drastic provided you can demonstrate it’s legal in your own country (or via an MOT and road tax).

I spend a lot of time in Denmark and can tell you that as the sun starts to come out at this time of year, so do the very noisy Harley’s and also a lot of American muscle cars etc!

Maybe a local can supply more details …?

MAK · May 3, 2023

Fast Eddie said:
I very much doubt they could do anything so drastic provided you can demonstrate it’s legal in your own country (or via an MOT and road tax).

I spend a lot of time in Denmark and can tell you that as the sun starts to come out at this time of year, so do the very noisy Harley’s and also a lot of American muscle cars etc!

Maybe a local can supply more details …?

Not the full article just a taster.

Fast Eddie · May 3, 2023

Seems to me you’d have to try really hard to get into trouble, especially as a foreigner, and if you ride ‘sensibly’ in the relevant places.

MAK · May 3, 2023

Fast Eddie said:
Seems to me you’d have to try really hard to get into trouble, especially as a foreigner, and if you ride ‘sensibly’ in the relevant places.

Let’s hope so!

TonyA · May 3, 2023

MAK said:
Let’s hope so!

Very light with the throttle hand , keep the revs down below 4000 and you should be ok . This is when the mutable Thiel exhaust would come in handy.

TonyA · May 3, 2023

MAK said:
Not the full article just a taster.View attachment 106497

Yes , I've seen this exhaust for the new Sportster S 1250 . There is a electric solenoid operated butterly valve in the muffler and they show it in the video I watched.

Fast Eddie · May 3, 2023

TonyA said:
Very light with the throttle hand , keep the revs down below 4000 and you should be ok . This is when the mutable Thiel exhaust would come in handy.

That’s a very good point Tony, they make a huge difference to the noise, and zero difference to power (that I could detect anyway).

Mike40M · May 3, 2023

Talk in Sweden is mostly about Germany, not Denmark. But maybe things have changed.

acotrel · May 27, 2023

TonyA said:
Yes , I've seen this exhaust for the new Sportster S 1250 . There is a electric solenoid operated butterly valve in the muffler and they show it in the video I watched.

I suggest Exup was only ever about noise. They claim it impetves Torque. But an improve ment in horsepower with less noise gives - what ?
It probably means they can use more rasdical port timing and stay legal.

concours · May 27, 2023

TonyA said:
Yes , I've seen this exhaust for the new Sportster S 1250 . There is a electric solenoid operated butterly valve in the muffler and they show it in the video I watched.

I love it when Harley eventually comes around to modern technology.
Variable exhaust
Four valves per
Liquid cooling
USD forks
Rubber engine mounts

They are well on the way, doing good.

Voodooo · May 27, 2023

concours said:
I love it when Harley eventually comes around to modern technology.
Variable exhaust
Four valves per
Liquid cooling
USD forks
Rubber engine mounts

They are well on the way, doing good.

Nobody is buying the sportster S
And all the other Milwaukee 8 bikes are solid mounted with no modern technology

Mike40M · May 27, 2023

Modern technology? Quite certain there was HD models with 4 valves and variable exhaust noise a century ago.
And the flatheads had as light valve train as a DOHC engine with their 4 underhead cams.

BritTwit · May 28, 2023

Voodooo said:
Nobody is buying the sportster S
And all the other Milwaukee 8 bikes are solid mounted with no modern technology

Aren't the 8s counterbalanced, they shouldn't need rubber mounting, no?

BritTwit · May 28, 2023

Mike40M said:
Quite certain there was HD models with 4 valves and variable exhaust noise a century ago.

4 Valves per cylinder, sold to the public, when was that?

Voodooo · May 28, 2023

BritTwit said:
Aren't the 8s counterbalanced, they shouldn't need rubber mounting, no?

Yep. My point was, nothing of the M8 is really modern, definitely not cutting edge.

City Garage · May 28, 2023

Voodooo said:
Nobody is buying the sportster S
And all the other Milwaukee 8 bikes are solid mounted with no modern technology

Don't say that!! They have an ECU that now only the dealers can work on! More ways to F the independent shops...

City Garage · May 28, 2023

Voodooo said:
Nobody is buying the sportster S
And all the other Milwaukee 8 bikes are solid mounted with no modern technology

They are still trying to give away sportsters that went unsold from 2012 and up. In 2018 they offered that buyback program because dealers still had NEW 2012 models sitting on the floor unsold. The sportster engine is actually not too bad, which is why you see them turned into street trackers.

https://www.autoevolution.com/news/...purchase-price-in-trade-in-scheme-126547.html

Voodooo · May 28, 2023

City Garage said:
Don't say that!! They have an ECU that now only the dealers can work on! More ways to F the independent shops...

When I had my low rider ST, I was thinking of installing a bore kit and cam. Couldn’t get a cable anywhere. Maybe it’s changed now, don’t matter, I sold it anyhow.

Voodooo · May 28, 2023

City Garage said:
They are still trying to give away sportsters that went unsold from 2012 and up. In 2018 they offered that buyback program because dealers still had NEW 2012 models sitting on the floor unsold. The sportster engine is actually not too bad, which is why you see them turned into street trackers.

https://www.autoevolution.com/news/...purchase-price-in-trade-in-scheme-126547.html

I’m talking about the sportster S