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Hoop style swing arm question

Started by Dents, May 01, 2011, 01:23:50 PM

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Dents

May 01, 2011, 01:23:50 PM
I made a big mistake and flipped the spacer on my wheel after a tire change and after a short period of time wore a deep groove in my swing arm.  My mechanic says its junk and I need a new one. 

My first question...are all hoop style swing arms compatible with one another?  I've got a 99 M900s.  My swing arm is the aluminum version. 

Could someone braze the defect to fill the void?  I'm sure it depends on how deep the groove is worn.  I'd say it's at least 1/2 through the metal.  I have however ridden this bike for a year without an issue.  Although my luck may be about ready to run out.

Does anyone have a swingarm to get rid of.  I'd prefer to stay with the aluminum version if possible.

Thanks for your help in advance
99'S M900 Technomagnesio rear, Marvic Front, SBK Forks, CC Triple and Risers, Road Racing Tach, Nichols Flywheel, Carbon Creations Tail unit, CF rear hugger, CF SBK Front Fender

booger

#1
May 01, 2011, 01:46:49 PM
Post a photo. I'd like to see this damage. Depending on the extent, if it were me in this situation I'd probably try to TIG repair it. Especially since you said you had been riding on it like that for a while with no problems. It would have to pretty much be cut all the way through for me to consider replacing it. I'd then grind the repair down flush, polish & pretty, then look at having a nice type III hard anodizing put on the whole thing [thumbsup]

You can fix just about anything it just comes down to a matter of how much you are willing to go through to fix it. Years of resto work with my father on British roadsters has taught me that. Some parts are just not available anymore. This is not the case with your Ducati fortunately. New swingarms come up for sale all the time on eBay & forums like this. Don't settle for a steel replacement, fix the one you have if you can't find an aluminum one.

Then get it hard ano'ed and post photos  [moto]
Everybody got a plan 'till they get punched in the mouth - Mike Tyson

2001 M900Sie - sold
2006 S2R1000 - sold
2008 HM1100S - sold
2004 998 FE - $old
2007 S4RT
2007 Vespa LX50 aka "Slowey"
2008 BMW R1200 GSA

ducpainter

#2
May 01, 2011, 02:49:58 PM
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

+11ty billion

Have it welded and sanded smooth.


Paint or powder will give the aluminum good protection also.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Dents

#3
May 01, 2011, 04:34:12 PM
That's what I felt.  The ducati mechanic didn't seem familar with a process like that.  He said he didn't feel comfortable putting his "stamp of approval" on it.

Is there a lot of benefit to painting or powder coating.  I kinda like the aluminum look. 

I'll post a pic as soon as I can figure it out.
99'S M900 Technomagnesio rear, Marvic Front, SBK Forks, CC Triple and Risers, Road Racing Tach, Nichols Flywheel, Carbon Creations Tail unit, CF rear hugger, CF SBK Front Fender

ducpainter

#4
May 01, 2011, 04:39:20 PM
Quote from: Dents on May 01, 2011, 04:34:12 PM
That's what I felt.  The ducati mechanic didn't seem familar with a process like that.  He said he didn't feel comfortable putting his "stamp of approval" on it.

Is there a lot of benefit to painting or powder coating.  I kinda like the aluminum look. 

I'll post a pic as soon as I can figure it out.
Anodized aluminum is a great finish.

If it's available in your area for a reasonable price go for it.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


greenmonster

#5
May 01, 2011, 04:40:30 PM
+1 on welding, FHE.
M900 -97 
MTS 1100s  -07

lazylightnin717

#6
May 01, 2011, 05:38:22 PM
Doesn't welding weaken the area?
Comes a time
When the blind man takes your hand
Says don't you see
Gotta' make it somehow
On the dreams you still believe

ducpainter

#7
May 01, 2011, 05:45:07 PM
Quote from: lazylightnin717 on May 01, 2011, 05:38:22 PM
Doesn't welding weaken the area?
Not if it's done correctly.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Dents

#8
May 01, 2011, 06:43:41 PM
do you know a guy that could handle this

[img]http://i1133.photobucket.com/albums/m600/DentsPro/swingarm.jpg/img]
99'S M900 Technomagnesio rear, Marvic Front, SBK Forks, CC Triple and Risers, Road Racing Tach, Nichols Flywheel, Carbon Creations Tail unit, CF rear hugger, CF SBK Front Fender

Dents

#9
May 01, 2011, 06:45:47 PM
99'S M900 Technomagnesio rear, Marvic Front, SBK Forks, CC Triple and Risers, Road Racing Tach, Nichols Flywheel, Carbon Creations Tail unit, CF rear hugger, CF SBK Front Fender

Howie

#10
May 01, 2011, 07:48:21 PM
Weld and smooth, it will be better than new.

ducpainter

#11
May 02, 2011, 04:13:49 AM
Quote from: Dents on May 01, 2011, 06:43:41 PM
do you know a guy that could handle this

[img]http://i1133.photobucket.com/albums/m600/DentsPro/swingarm.jpg/img]
any competent welder can.

There are some out this way...where are you?
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Slide Panda

#12
May 02, 2011, 05:37:11 AM
Not to give you hassles - but how did the bike even move when you first reassembled it? A buddy of mine did this to my bike, and as soon as we snugged the axle nuts I couldn't turn the wheel at all when I tried to rotate it on the stand.
-Throttle's on the right, so are the brakes.  Good luck.
- '00 M900S with all the farkles
- '08 KTM 690 StupidMoto
- '07 Triumph 675 Track bike.

Dents

#13
May 02, 2011, 08:36:54 PM
You know I don't quite remember.  I do remember why I thought to check the wheel though.  I noticed all of a sudden my axle nut was really loose.

Ducpainter

I'm in Birmingham Alabama.  Would you have a suggestion on how I'd begin looking for a welder that could handle this and do a quality job?
99'S M900 Technomagnesio rear, Marvic Front, SBK Forks, CC Triple and Risers, Road Racing Tach, Nichols Flywheel, Carbon Creations Tail unit, CF rear hugger, CF SBK Front Fender

booger

#14
May 02, 2011, 09:00:38 PM
Ask a custom cycle shop or hod rod shop. They ought to know. Or ask a machine shop.
Everybody got a plan 'till they get punched in the mouth - Mike Tyson

2001 M900Sie - sold
2006 S2R1000 - sold
2008 HM1100S - sold
2004 998 FE - $old
2007 S4RT
2007 Vespa LX50 aka "Slowey"
2008 BMW R1200 GSA
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