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Penton Owners Group

General Discussion => Wanted / For Sale => Topic started by: marsattacks on November 28, 2020, 02:55:57 PM

Title: 1978 MC5 swingarm
Post by: marsattacks on November 28, 2020, 02:55:57 PM
While cleaning up some parts etc I Found a 1978 swingarm  + side stand plus chain block.  Nice shape not bent.  This was on a 1978 MC5-400 and I replaced it with a GS swingarm which is significantly different.  

How about $50 + shipping.  If you think that's too much just let me know.  Thanks John

Have a few other related parts nothing to special.  Brake pedal and rod. Air box and filter cage, side plastic, handlebar risers (they increase the height a bit).  Plus some fork springs I'm going to scrap can't imagine they are too useful.
Title: 1978 MC5 swingarm
Post by: skiracer on November 29, 2020, 12:04:08 PM
Hey John,
So what is the difference between the MX and XC swingarms for the 78 models?

1976 250 MC5 Original Owner
1976 Penton 175 XC
Title: 1978 MC5 swingarm
Post by: skiracer on November 29, 2020, 12:05:06 PM
Sorry, GS swingarm, not XC......

Quotequote:Originally posted by skiracer

Hey John,
So what is the difference between the MX and XC swingarms for the 78 models?

1976 250 MC5 Original Owner
1976 Penton 175 XC


1976 250 MC5 Original Owner
1976 Penton 175 XC
Title: 1978 MC5 swingarm
Post by: marsattacks on November 29, 2020, 07:49:03 PM
Bike is long gone but subject to correction here is my recollection:

1.  Center stand fits gs swingarm only.  This I'm certain of.  
2.  Arc of swing arm bend is tighter on mc5 I think.
3.  Length of gs is greater I think.
4.  Shock mount points might be different.
5.  Chain block might be different .

I'm sure someone else know way more.
Title: 1978 MC5 swingarm
Post by: marsattacks on November 29, 2020, 07:57:17 PM
The gs swingarm definitely accommodates a black plastic chain guard.  I don't think it works with the mc5.
Title: 1978 MC5 swingarm
Post by: skiracer on November 30, 2020, 01:39:37 PM
Thanks!

Quotequote:Originally posted by marsattacks

The gs swingarm definitely accommodates a black plastic chain guard.  I don't think it works with the mc5.

1976 250 MC5 Original Owner
1976 Penton 175 XC
Title: 1978 MC5 swingarm
Post by: Bob Seymour on December 08, 2020, 08:53:04 PM
Hey John
 Is the air box one of the orange ones, but has a opening or removable panel on the side? Might have a interest in the other parts also
Thanks, Bob
PS. If I recall, I am local to you in the Greensburg area.
Title: 1978 MC5 swingarm
Post by: Bob Seymour on December 08, 2020, 09:12:10 PM
Hey John,
Is that air box a orange plastic box with a side panel opening? I might have interest in the other parts also.
Thanks, Bob
PS. If I recall, I am relatively local to you being in the Greensburg area.
Title: 1978 MC5 swingarm
Post by: Bob Seymour on December 08, 2020, 09:41:16 PM
Hey John,
I posted twice here before and seems to be a problem with the site not updating the post. Have some interest in these parts.
I recall, I believe I am local to you being in the Greensburg area.
Thanks Bob
Title: 1978 MC5 swingarm
Post by: Bob Seymour on December 08, 2020, 10:47:44 PM
Site is not posting responses?
Title: 1978 MC5 swingarm
Post by: marsattacks on December 09, 2020, 11:26:16 PM
Hi the air box is orange.  A bit janky.  I can send you photos.
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