LONGER SWINGARM

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LONGER SWINGARM

30 Jun 2017 05:38 - 30 Jun 2017 06:45
#765716
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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Re: LONGER SWINGARM

30 Jun 2017 05:41
#765718
See the size difference

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Re: LONGER SWINGARM

30 Jun 2017 06:36
#765725
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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Re: LONGER SWINGARM

30 Jun 2017 08:51
#765736
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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Re: LONGER SWINGARM

30 Jun 2017 08:55
#765737
Here is the arm..... all mocked up in the bike.

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Re: LONGER SWINGARM

30 Jun 2017 09:00
#765738
Process of making the arm longer....

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Re: LONGER SWINGARM

30 Jun 2017 09:04
#765739
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
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Re: LONGER SWINGARM

30 Jun 2017 09:07
#765740
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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Re: LONGER SWINGARM

30 Jun 2017 10:01
#765745
Sits nice!!!!

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Re: LONGER SWINGARM

30 Jun 2017 10:56
#765749
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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Re: LONGER SWINGARM

30 Jun 2017 18:29
#765793
Yes Steve I did, check out the pics.

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Re: LONGER SWINGARM

30 Jun 2017 18:33
#765794
Arm clamped down....

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