Dunstall Silencers for Bonneville - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 12 (permalink) Old 12-06-2012, 03:38 AM Thread Starter
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Thumbs up Dunstall Silencers for Bonneville

Hi , has anyone come across some bonnie pipes by Dunstall ? for sale through British bike bits . http://britishbikebits.com/aftermark...eville-uk-made Have a look ! sound great ! not a bad price either £192 inc vat !....... not sure how to share vid clip from u-tube sorry......... Dunstall Silencers - Triumph New Bonneville
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post #2 of 12 (permalink) Old 12-06-2012, 06:03 AM
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Dunstall closed down in 1982 so they're certainly not made by them. I can't recall them ever making that sort of shape silencers though. They appear to be opened again as on this link: http://dunstallmotorcycles.com/ the site doesn't appear to work at all though...

Strange, they look more like Norman Hyde or Triumphs own TOGAs. I seem to remember that Dunstall Patent silencers looked more like long tapering megaphones with 7 small outlet pipes on the end, this sort of thing:


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post #3 of 12 (permalink) Old 12-06-2012, 06:25 AM
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<sound clip, I think they sound alot better than NH toga's
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post #4 of 12 (permalink) Old 12-06-2012, 07:53 AM
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Originally Posted by Forchetto View Post
Dunstall closed down in 1982 so they're certainly not made by them. I can't recall them ever making that sort of shape silencers though. They appear to be opened again as on this link: http://dunstallmotorcycles.com/ the site doesn't appear to work at all though...

Strange, they look more like Norman Hyde or Triumphs own TOGAs. I seem to remember that Dunstall Patent silencers looked more like long tapering megaphones with 7 small outlet pipes on the end, this sort of thing:

You are quite right, sir.

I had a pair of Dunstall Decibels on my '75 Ducati GT. Much better sounding than the stock Lafranconi mufflers.
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post #5 of 12 (permalink) Old 12-06-2012, 10:32 AM
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post #6 of 12 (permalink) Old 12-07-2012, 01:51 AM Thread Starter
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Thanks Forchetto, I agree trying to find any official Dunstall website is to no avail, the youtube clip looks & sounds intriguing, nice deep tone / barky & not to raspy. When the weather is better next year shall have to get out on a local Triumph ride out to listen/see different pipe options before making my mind up . ( Father xmas supplying funds ) HO Ho Ho.
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post #7 of 12 (permalink) Old 05-07-2013, 11:19 PM
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Thanks Forchetto, I agree trying to find any official Dunstall website is to no avail, the youtube clip looks & sounds intriguing, nice deep tone / barky & not to raspy. When the weather is better next year shall have to get out on a local Triumph ride out to listen/see different pipe options before making my mind up . ( Father xmas supplying funds ) HO Ho Ho.
I got 'em....take the baffles out and they shake the ground and anything within a KM radius!
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post #8 of 12 (permalink) Old 05-08-2013, 08:39 AM
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I had an original set on my XS650 back in '72. Even without any jet changes - they provided a lot more power throughout the engine's range and sounded wonderful. They had a perforated disc and the bundle of tubes at the back. they were advertised as having no back pressure; that the tubes and disc tricked the sound waves into being quieter somehow.The bracket that was welded to the body cracked on mine under the Yamaha's vibes, so I replaced them w/ a Hooker 2 into 1 and was bitterly disappointed in the sound and even more the shift in performance to high RPM only. If those are actual reproductions - they work very nicely on the Bonneville. Seems like the originals had a little different end, but it's been 40 years.

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Hi , has anyone come across some bonnie pipes by Dunstall ? for sale through British bike bits . http://britishbikebits.com/aftermark...eville-uk-made Have a look ! sound great ! not a bad price either £192 inc vat !....... not sure how to share vid clip from u-tube sorry......... Dunstall Silencers - Triumph New Bonneville

"...I am a Cafe Racer myself, on some days---and many nights for that matter---and it is one of my finest addictions..." Hunter S. Thompson

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post #9 of 12 (permalink) Old 05-08-2013, 03:58 PM
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Quote:
Originally Posted by norton74 View Post
You are quite right, sir.

I had a pair of Dunstall Decibels on my '75 Ducati GT. Much better sounding than the stock Lafranconi mufflers.
You sure they aren't Contis or Conti-replicas?
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post #10 of 12 (permalink) Old 05-08-2013, 07:08 PM
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I ran the identical silencers in Forchetto's post on my 1974 Benelli Tornado SS... far superior to the Franconi. I bought mine from Munroe Cycles in San Francisco Calif in 1989..NOS.

Last edited by bohemian; 05-08-2013 at 07:13 PM.
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