Ducati Monster Forum

Moto Board => Tech => Topic started by: MotoPsycho on May 28, 2014, 12:15:48 AM

Title: swingarm compatibility
Post by: MotoPsycho on May 28, 2014, 12:15:48 AM
I know I saw it somewhere here but evidently I'm searching for the wrong thing. Somewhere I saw a Gen 1 Monster with a Supersport swingarm on it. I remember seeing one of Doug Cook's pictures that made it work but the entire back of the frame looked like it was missing. Obviously I'd need a SS swingarm, shock and mount for the head. But...

Who's done it and made it work ? What had to be cut out to make it fit ?

If I can ditch my hoop and linkage to clean everything up and open up a new possibility for rear suspension I'm all for it.
Title: Re: swingarm compatibility
Post by: ducpainter on May 28, 2014, 03:01:28 AM
Duck-Stew did it.
Title: Re: swingarm compatibility
Post by: MotoPsycho on May 29, 2014, 12:19:45 PM
I saw pictures of one of his builds but that still doesn't answer my questions.

Assuming axle size is the same (17mm) I believe a mid 90's one will work. Correct ? What about pivot size ? Is that the same ?
Title: Re: swingarm compatibility
Post by: Düb Lüv on May 29, 2014, 07:35:03 PM
Pretty sure all supersports have 17mm axles and same pivot/diameters as DSS monsters.
Title: Re: swingarm compatibility
Post by: Speeddog on May 29, 2014, 09:58:02 PM
Quote from: Düb Lüv on May 29, 2014, 07:35:03 PM
Pretty sure all supersports have 17mm axles and same pivot/diameters as DSS monsters.

AFAIK, ^^^ is the case.

Aesthetically, the last SS swingarm is the one to get.

Fitment wise, I think they're all the same.
Stu added an upper shock mount to the frame, and re-configured the bottom of the tank (not a day's work).

I think Dub Luv got an upper shock mount that goes in place of the rear vertical valve cover, but it's on a DS engine.

Dunno what else would have to be modded on a Gen 1, oil breather tank and fusebox/electricals?
Title: Re: swingarm compatibility
Post by: MotoPsycho on May 31, 2014, 03:52:16 PM
Quote from: Speeddog on May 29, 2014, 09:58:02 PM
AFAIK, ^^^ is the case.

Aesthetically, the last SS swingarm is the one to get.

Fitment wise, I think they're all the same.
Stu added an upper shock mount to the frame, and re-configured the bottom of the tank (not a day's work).

I think Dub Luv got an upper shock mount that goes in place of the rear vertical valve cover, but it's on a DS engine.

Dunno what else would have to be modded on a Gen 1, oil breather tank and fusebox/electricals?

Thanks SD and Dub, that's what I needed to know. Now to look for the valve cover shock mount. Or, I have a friend that's an excellent fabricator and I'm sure I could persuade him to lend a hand. Oil breather tank is gone and the wiring will be redone/cleaned up before I get that far. I'm just trying to think ahead of the game. That way I won't have to worry too much when it comes to 3-4 week shipping times.
Title: Re: swingarm compatibility
Post by: Speeddog on May 31, 2014, 09:25:51 PM
My preference would be to add a shock mount to the frame.
A bit of clever design and it could be a bolt-in.

The DS have a nice spigot in the head to feed the load into.
Earlier motors do not.
Either way, I'm a bit leery of feeding that load into the head.
Perhaps it's OK, but the cylinders and heads weren't intended to be structural.
Title: Re: swingarm compatibility
Post by: MotoPsycho on June 01, 2014, 01:43:09 AM
Yes, agreed. Thanks again for the help fellas.