LONGER SWINGARM

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30 Jun 2017 05:38 - 30 Jun 2017 06:45 #765716 by TwoCam
LONGER SWINGARM was created by TwoCam
im in the process of lengthening my arm 3 inches. in the process installing new pivot bearings.stock bearing is 28x22x16mm. on some swingarms you cam double up the bearings on each side for mor strength. my arm has a shoulder down in the tube so it was not possible. so had my bearing guy find me some that are 20mm wide. they fit perfectly!! its a german bearing, part number hk2220-b.
Last edit: 30 Jun 2017 06:45 by Patton. Reason: change all caps to lower case

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30 Jun 2017 05:41 #765718 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
See the size difference
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  • SWest
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  • 10 22 2014
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30 Jun 2017 06:36 #765725 by SWest
Replied by SWest on topic LONGER SWINGARM
What are you doing to beef it up to prevent flex?
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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30 Jun 2017 08:51 #765736 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
I HAVE A COUPLE IDEAS.....TO TUBE IN THE LOWER SIDE.......MY FIRST IDEA WONT WORK. THE CHAIN IS RIGHT IN THE WAY....I HAVE SEEN PICS OF WHAT OTHER PEOPLE HAVE DONE, SO I HAVE A FEW IDEAS.....WORK IN PROGRESS......

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30 Jun 2017 08:55 #765737 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
Here is the arm..... all mocked up in the bike.
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30 Jun 2017 09:00 #765738 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
Process of making the arm longer....
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  • SWest
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  • 10 22 2014
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30 Jun 2017 09:04 #765739 by SWest
Replied by SWest on topic LONGER SWINGARM
My arm mod is on hold for now but you might get some ideas from Leon and the others.
Steve
kzrider.com/forum/5-chassis/600555-swing...zzr1200?limitstart=0
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
The following user(s) said Thank You: TwoCam

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30 Jun 2017 09:07 #765740 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
I TURNED DOWN THICK WALL TUBING ON THE LATHE, THEN BEVELED THE ENDS TO PRESS FIT INTO THE FACTORY TUBING, SQUARED EVERYTHING/CLAMPED UP AND STARTED TACK WELDING....HAD TO TRIM THE INNER FENDER, CUT OFF THE REAR FENDER, ALSO HAVE TO MAKE A MODIFICATION TO THE BASTTERY BOX, SITS TOO LOW........ILL TAKE IT OUT AND CUT ABOUT AN INCH OFF AND MAKE A NEW BOTTOM PLATE, THEN I SHOULD HAVE PLENTY OF CLEARANCE.

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30 Jun 2017 10:01 #765745 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
Sits nice!!!!
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  • SWest
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  • 10 22 2014
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30 Jun 2017 10:56 #765749 by SWest
Replied by SWest on topic LONGER SWINGARM
Did you clamp it down while welding? That's why mine is stalled. Off 1/8" at the back. I made a jig and will have to recut and weld it again.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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30 Jun 2017 18:29 #765793 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
Yes Steve I did, check out the pics.

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30 Jun 2017 18:33 #765794 by TwoCam
Replied by TwoCam on topic LONGER SWINGARM
Arm clamped down....
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