Planet Minis

BRAWNYREBEL · 12-17-2006, 05:42 PM

Has any one lengthened the stock swing arm on the 86 style z50? I know the xr75 can easily be made to fit but i can just as easily cut and lengthen mine. I would love to see pics of this if you have them.

Z50King · 12-17-2006, 05:47 PM

ok, i have a 96 and i just cut mine and place milled barstock in the middle. with two ends on each of the stock that fit into the hollow swinger pipe, then welded them together, but you need to be caure ful where you cut it, i dont have any pics on this comp, but ill get some up on here soon for ya

BRAWNYREBEL · 12-17-2006, 05:51 PM

That's exactly what i am thinking about doing. I have plans to make it beefy too. What did you do about the brake linkage? What shocks did you use?

SprNtrl · 12-17-2006, 08:14 PM

Quote:

Originally Posted by BRAWNYREBEL

That's exactly what i am thinking about doing. I have plans to make it beefy too. What did you do about the brake linkage? What shocks did you use?

If you increase swingarm length, I would increase it similar to aftermarket companies ie: +4, +8, +10, +12, +16cm. It would make finding shocks, and brake linkages that much easier. +4cm will center the rear wheel under the fender, anyting longer will not.

BRAWNYREBEL · 12-17-2006, 08:17 PM

I am thinking 4 in will be enough to make the bike a little less squirrely.

dirtbkr188 · 12-17-2006, 08:23 PM

I forget who posted the thread in here, but they used round stock the same O.D. as the swingarm, and machined both ends on a lathe, and inserted them into the I.D. of the swingarm, notched the seams, and then welded them all back together. A topnotch professional job when it was all finished.

Z50King · 12-17-2006, 09:39 PM

i need to get you pics of how i did it near the rear tabs on the swinger, youll mess it up if you dont do it right. it was tricky to think of how to do it right with the tabs back there, i need to go to my dads to post the pic off of his computer, ill do it tomorrow,

i did it +3.5 inches, doesnt wheely that well, but man does it track straighter

symp · 12-17-2006, 11:02 PM

Quote:

Originally Posted by dirtbkr188

I forget who posted the thread in here, but they used round stock the same O.D. as the swingarm, and machined.....

was dilligaf surprise surprise

BRAWNYREBEL · 12-18-2006, 05:54 AM

That is some top notch work dilligaf. I don't have acess to a lathe , so i am just going to find some tube with the same od as the id of the stock swing. You don't by chance remember what you had to turn it dow to do you dilligaf?

BRAWNYREBEL · 12-18-2006, 05:59 AM

Ok. Thank you. Im sure once i cut it there wont be a problem finding the right stuff

d0n · 12-18-2006, 06:07 AM

Lengthening the stock swingarm is an option but it looks like a lot of work compared to buying an xr75 swinger (already +4" longer), cutting a 1/4" off each "ear" on the Z frame and bolting on the swinger.

If you don't do it like dilligaf did and you just slide a piece of pipe inside the swinger tube... you'll end up with a section of your swingarm that's smaller in diameter than the rest.

d0n · 12-18-2006, 06:22 AM

here's just what you need! Although, I don't think it's worth $150+

http://cgi.ebay.com/ebaymotors/1975-...QQcmdZViewItem

arlindsay1992 · 12-18-2006, 07:41 AM

I may be doing something like that soon to fit some CT70 wheels. But I'll buy an old swingarm first. I always like to be able to go back to stock.

Z50King · 12-18-2006, 08:28 AM

ok, none of you guys are moving the shock mounts up the swinger. i lengthened mine 3.5 inches and moved the shock mounts 3.5 inches up the swinger, so you get more travel and stiffness out of the stock shocks. ill post up pics in an hour or so

Z50King · 12-18-2006, 09:22 AM

yes, i have +1 springs, so it sits level.

im gonna post a pic right now on the other computer, see ya soon

Z50King · 12-18-2006, 09:32 AM

um, in my years here on pm, how do i do attachments??

Z50King · 12-18-2006, 09:43 AM

the first one is my rear swinger. we made a tab with the mount on it and moved it up, then ground the old mount plate off of the far back tab.

screw it, attachments arent going thru

i made it huge so you can see where the welds are, if you look closely about a half inch inch behind the end of the kickstand, theres the front weld, then, right above the front chain guard mount is the rear weld.

its a 3.5 inch piece of barstock, actually 4.5 inches long, milled down on the ends a distance of one half inch to make it 3.5 inch long extension. you know what i mean

Z50King · 12-18-2006, 09:49 AM

heres what she looks like with the +1 front springs, pretty even both ends this way

sorry for the size, but pm attachments aint working

this is an old picture

d0n · 12-18-2006, 10:14 AM

z50king I see what youre saying but wouldn't it be easier to buy longer rear shocks?

Z50King · 12-18-2006, 10:15 AM

i didnt have the money to buy daytonas or something for it, and with the added stiffness of moving them up, they stay pretty hard with the extra distance. if you know what im talking about

12-17-2006, 05:42 PM	#1 (permalink)
BRAWNYREBEL 1st Gear Member Join Date: Nov 2006 Location: Taylor Mill ,KY Posts: 152	lengthening a stock swing. Has any one lengthened the stock swing arm on the 86 style z50? I know the xr75 can easily be made to fit but i can just as easily cut and lengthen mine. I would love to see pics of this if you have them.

12-18-2006, 06:07 AM	#11 (permalink)
d0n 3rd Gear Member Join Date: Nov 2005 Location: Troy NY Posts: 2,172	Lengthening the stock swingarm is an option but it looks like a lot of work compared to buying an xr75 swinger (already +4" longer), cutting a 1/4" off each "ear" on the Z frame and bolting on the swinger. If you don't do it like dilligaf did and you just slide a piece of pipe inside the swinger tube... you'll end up with a section of your swingarm that's smaller in diameter than the rest. Last edited by d0n; 12-18-2006 at 06:15 AM.

12-17-2006, 05:47 PM	#2 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	ok, i have a 96 and i just cut mine and place milled barstock in the middle. with two ends on each of the stock that fit into the hollow swinger pipe, then welded them together, but you need to be caure ful where you cut it, i dont have any pics on this comp, but ill get some up on here soon for ya

12-17-2006, 05:51 PM	#3 (permalink)
BRAWNYREBEL 1st Gear Member Join Date: Nov 2006 Location: Taylor Mill ,KY Posts: 152	That's exactly what i am thinking about doing. I have plans to make it beefy too. What did you do about the brake linkage? What shocks did you use?

12-17-2006, 08:17 PM	#5 (permalink)
BRAWNYREBEL 1st Gear Member Join Date: Nov 2006 Location: Taylor Mill ,KY Posts: 152	I am thinking 4 in will be enough to make the bike a little less squirrely.

12-17-2006, 08:23 PM	#6 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,971	I forget who posted the thread in here, but they used round stock the same O.D. as the swingarm, and machined both ends on a lathe, and inserted them into the I.D. of the swingarm, notched the seams, and then welded them all back together. A topnotch professional job when it was all finished.

12-17-2006, 09:39 PM	#7 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	i need to get you pics of how i did it near the rear tabs on the swinger, youll mess it up if you dont do it right. it was tricky to think of how to do it right with the tabs back there, i need to go to my dads to post the pic off of his computer, ill do it tomorrow, i did it +3.5 inches, doesnt wheely that well, but man does it track straighter

12-18-2006, 05:54 AM	#9 (permalink)
BRAWNYREBEL 1st Gear Member Join Date: Nov 2006 Location: Taylor Mill ,KY Posts: 152	That is some top notch work dilligaf. I don't have acess to a lathe , so i am just going to find some tube with the same od as the id of the stock swing. You don't by chance remember what you had to turn it dow to do you dilligaf?

12-18-2006, 05:59 AM	#10 (permalink)
BRAWNYREBEL 1st Gear Member Join Date: Nov 2006 Location: Taylor Mill ,KY Posts: 152	Ok. Thank you. Im sure once i cut it there wont be a problem finding the right stuff

12-18-2006, 06:22 AM	#12 (permalink)
d0n 3rd Gear Member Join Date: Nov 2005 Location: Troy NY Posts: 2,172	here's just what you need! Although, I don't think it's worth $150+ http://cgi.ebay.com/ebaymotors/1975-...QQcmdZViewItem

12-18-2006, 07:41 AM	#13 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,369	I may be doing something like that soon to fit some CT70 wheels. But I'll buy an old swingarm first. I always like to be able to go back to stock.

12-18-2006, 08:28 AM	#14 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	ok, none of you guys are moving the shock mounts up the swinger. i lengthened mine 3.5 inches and moved the shock mounts 3.5 inches up the swinger, so you get more travel and stiffness out of the stock shocks. ill post up pics in an hour or so

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12-18-2006, 09:22 AM	#15 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	yes, i have +1 springs, so it sits level. im gonna post a pic right now on the other computer, see ya soon

12-18-2006, 09:32 AM	#16 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	um, in my years here on pm, how do i do attachments??

12-18-2006, 09:43 AM	#17 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	the first one is my rear swinger. we made a tab with the mount on it and moved it up, then ground the old mount plate off of the far back tab. screw it, attachments arent going thru i made it huge so you can see where the welds are, if you look closely about a half inch inch behind the end of the kickstand, theres the front weld, then, right above the front chain guard mount is the rear weld. its a 3.5 inch piece of barstock, actually 4.5 inches long, milled down on the ends a distance of one half inch to make it 3.5 inch long extension. you know what i mean

12-18-2006, 09:49 AM	#18 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	heres what she looks like with the +1 front springs, pretty even both ends this way sorry for the size, but pm attachments aint working this is an old picture

12-18-2006, 10:14 AM	#19 (permalink)
d0n 3rd Gear Member Join Date: Nov 2005 Location: Troy NY Posts: 2,172	z50king I see what youre saying but wouldn't it be easier to buy longer rear shocks?

12-18-2006, 10:15 AM	#20 (permalink)
Z50King 3rd Gear Member Join Date: Sep 2004 Location: Upland, Ca, CPP Posts: 9,758 My Mood:	i didnt have the money to buy daytonas or something for it, and with the added stiffness of moving them up, they stay pretty hard with the extra distance. if you know what im talking about