t-dubs underbraced stock swingarm.

  • mark1122
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15 May 2010 14:38 #368139 by mark1122
Replied by mark1122 on topic t-dubs underbraced stock swingarm.
I'm looking forward to seeing the progress Leon. u seem to be off to a good start.
Have fun,
Visors down.

76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

~ ~ ~_@
~ ~ _- \,
~ (k) / (z)

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  • porchev914
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15 May 2010 20:14 #368197 by porchev914
Replied by porchev914 on topic t-dubs underbraced stock swingarm.
WHAT?! :blink: :ohmy: You mean to tell me that upgrading to modern rubber and a stiffer/modern swingarm improves handling? :huh: Say it aint so! :laugh: :laugh: :laugh:

So far so good Leon. I am jelous of your shop tools though. A super sturdy tubing bender, and I'd loooooove to learn how to tig :)

FRANKEN Z!
1978 KZ1000 A2A with 08'Speed Triple SSSA and '06 GSXR1000 front end

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15 May 2010 23:52 #368217 by kzmk2
Replied by kzmk2 on topic t-dubs underbraced stock swingarm.
rstnick wrote:

I didn't get to see what was all involved in the making of the bracing to my swingarm, so this will be great to see from start to finish Leon.
Not even sure what was used to weld mine.
I just handed away my arm, and some weeks later got this:





It sure has helped add stabilty in the corners and over bumps at highway speeds.


T-dub will have a sweet arm if it looks like this one, nice work!

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16 May 2010 06:37 #368232 by Old Man Rock
Replied by Old Man Rock on topic t-dubs underbraced stock swingarm.
Yummy... me likey metal fabby .... :blink: :laugh:

Leon, what are you using for the pivot tubes?
meaning are you fabbing from scratch or cutting off the original pivot tube and welding it into place...

Keep them images coming...

OMR

BTW, your tube bender gave me a good idea for what I could use for my exhaust pipe bender.... Sorry but I'm possibly stealing your idea there.... :S :laugh:

1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az

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  • mark1122
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16 May 2010 06:57 #368237 by mark1122
Replied by mark1122 on topic t-dubs underbraced stock swingarm.
something , i just recalled.
there is an article in the file base called Street Racer. in the article they mentioned that it would increase rigidity if u broadened the depth of the stock center brace.also a great place for an oil catch can.
i'm sure u have seen this Leon, but i thought i would bring it up for others.


kzrider.com/index.php?option=com_docman&...mit=20&limitstart=80

76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

~ ~ ~_@
~ ~ _- \,
~ (k) / (z)

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  • porchev914
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16 May 2010 10:57 #368285 by porchev914
Replied by porchev914 on topic t-dubs underbraced stock swingarm.
I hadn't seen it Mark, thanks.

Hows that swingarm coming along Leon?

FRANKEN Z!
1978 KZ1000 A2A with 08'Speed Triple SSSA and '06 GSXR1000 front end

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  • 531blackbanshee
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17 May 2010 06:58 - 17 May 2010 07:09 #368490 by 531blackbanshee
Replied by 531blackbanshee on topic t-dubs underbraced stock swingarm.
porchev,
i made good progress on the arm over the weekend,and i even took pics :) .but when i rolled my groggy headed a$$ outta bed and looked at my computer(which had been downloading virus scan updates all night)yesterday it had a popup that said i was being attacked by a virus and before i thought i clicked the button.DAMN,it installed something that is trying to make me buy some kinda antispy b.s.and it won't let me get into the add remove hardware/programs dealio.so until i can get my puter b!tch slapped:angry: back into line i can't get the pics down/uploaded :( .
i have most of the tubes notched and fitted and am making a run to factor 1 racing at lunch for some more chro-mo.hope fully i can get some pics up pretty quick.

omr,
when i custom build a swingarm i fabricate a new pivot tube as well.on t_dubs swingarm here we are just adding an under brace so the stock arm and pivot tube is still in use.

mark1122,
that is a good trick to help stiffen a stock swingarm instead of under bracing.stealthy :ohmy: .

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
Last edit: 17 May 2010 07:09 by 531blackbanshee.

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17 May 2010 07:28 #368497 by T_Dub
Replied by T_Dub on topic t-dubs underbraced stock swingarm.
That sucks leon, I did the same thing last week, had to format my machine. I hope you get it sorted and dont lose too much.

1977 KZ650B1
-810cc
-Cavanaugh Racing Head
-Mikuni RS34's
-GPR Muffler

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18 May 2010 06:51 #368701 by 531blackbanshee
Replied by 531blackbanshee on topic t-dubs underbraced stock swingarm.
i got my computer lined out.i was able to go in through my wifes profile and delete my profile and then reset me a profile back up and it seems to have cured my problem.

i neglected to take the chain run into account on my first fit ups so the tubes i had bent would not work.so i just welded some tube together to get the chain clearance and to be able to get the tubes fit up and notched and help in layout.then i will go back and bend the lower tube in one bend.not having computer controlled benders makes it time consuming to get correct bends.at $3.66 per foot for chro-mo you hate to miss bend :angry: .it all gets used somewhere tho.
on to the pics,:P .

here i am getting the chain line and gusset tubes all fitted.


the chain line is crowding the area where i want the back gusset tube,so that tube will be bent and fitted to allow ample chain clearance.


leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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  • 531blackbanshee
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18 May 2010 07:05 #368704 by 531blackbanshee
Replied by 531blackbanshee on topic t-dubs underbraced stock swingarm.
i have a joint jigger for notching tube,but when you have tube that has bends in it the joint jigger can't really accomodate them properly.so i built a tube holding jig for holding the tube in a mill vise then just use my holes saws chucked in the mill.worked great,:) .



here is the gusset tube for the right side and one of the other front tubes fitted.


profile shot


thats it for now,
leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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18 May 2010 07:10 - 18 May 2010 07:14 #368707 by T_Dub
Replied by T_Dub on topic t-dubs underbraced stock swingarm.
Wow, she's really coming together! Looking good Leon!

Thats not gonna hit off the tube my center stand used to mount to is it?

1977 KZ650B1
-810cc
-Cavanaugh Racing Head
-Mikuni RS34's
-GPR Muffler
Last edit: 18 May 2010 07:14 by T_Dub.

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18 May 2010 08:35 #368733 by T_Dub
Replied by T_Dub on topic t-dubs underbraced stock swingarm.
never mind, for some reason I thought the center stand tube was rearward of the swingarm pivot, but it turns out I'm just insane.

1977 KZ650B1
-810cc
-Cavanaugh Racing Head
-Mikuni RS34's
-GPR Muffler

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