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Author Topic: Rigid rear conversion to single shock swingarm APS-PG bike  (Read 19578 times)

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Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #30 on: December 10, 2017, 03:57:14 PM »
Updates to show reinforced swingarm, side struts, and rear fairing mounting stalks.  The added reinforcements to the swingarm are  made from sections of the 1" x 2" tubing.  The stiffeners at the front have to clear the links and the pivot (rocker arm?).  The side struts are added to ensure the subframe is strong enough to resist the spring forces and support the rear fairing.  There are two "horns" sticking out the side which will support the rear fairing mounts.
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Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #31 on: December 10, 2017, 04:00:05 PM »
Trouble with my snail internet.  I'll try some more photos.
We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!

Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #32 on: December 10, 2017, 04:01:11 PM »
I guess it's just one at a time!
We get too soon oldt, and too late schmart!
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Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #33 on: December 10, 2017, 04:05:24 PM »
Here you can see the stalks at the side of the new struts that will support the rear fairing.    The top view shows the set screw collars which I had to make as they aren't available locally.  They are welded to the swingarm as well as to the stiffeners at the front.  Everything is now tacked in place.  The next step is to strip down the frame, finish the welding, sandblast, and repaint when the weather permits.
Tom
« Last Edit: December 10, 2017, 04:14:26 PM by Koncretekid »
We get too soon oldt, and too late schmart!
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Offline Rex Schimmer

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #34 on: December 10, 2017, 04:48:59 PM »
Looking great Tom!! You are among several people I know that are adding rear suspension to their Bonneville racers before next year. You have started a trend!

rex
Rex

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Offline Peter Jack

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #35 on: December 10, 2017, 04:56:04 PM »
Nice job Tom. Looking at those welds I'd continue to feel that I'd be comfortable riding your machine.  :cheers: :cheers: :cheers:

Pete

Offline 55chevr

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #36 on: December 11, 2017, 07:10:53 PM »
Nice job Tom. Looking at those welds I'd continue to feel that I'd be comfortable riding your machine.  :cheers: :cheers: :cheers:

Pete

That is quite an endorsement .... coming from Pete


Joe

Offline Frank06

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Re:
« Reply #37 on: December 13, 2017, 10:20:13 PM »
Tom, did you get the welding finished?  It was warm enough to blast up our way!
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Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #38 on: December 14, 2017, 09:41:24 AM »
Frank,
Funny you should ask.  I finished welding a couple of days ago, cleaned off as much of the old paint as possible with paint remover, and just got done sandblasting.  Not much fun in freezing weather with a Princess Auto (think Harbor Freight) sandblaster and cheap hood, but it does the job.
We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!

Offline Frank06

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Re:
« Reply #39 on: December 15, 2017, 08:53:13 PM »
I really wanted to see this mod in person; maybe in a couple of months... :)
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Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #40 on: December 17, 2017, 04:12:55 PM »
Painted and reassembled but I ran out of black so --- had to use some leftover orange from my first road racer for the swingarm parts because I couldn't afford gold plating.    Off to Colorado for Christmas with the grandkids, so final reassembly with motor, and adding a new battery box will have to wait.  Here are a few photos:
We get too soon oldt, and too late schmart!
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Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #41 on: December 17, 2017, 04:14:13 PM »
And with the rear wheel in place and top view:
« Last Edit: December 17, 2017, 04:20:39 PM by Koncretekid »
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Offline Sumner

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #42 on: December 17, 2017, 06:39:42 PM »


Good work  :cheers: :cheers:  I like it,

Sumner

Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #43 on: February 24, 2018, 07:33:16 AM »
I have now completed the fitting of the fairings, but no without a lot of trimming of the additional frame members that I managed to get about an eighth inch too high.  I had to actually cut off the tops of both new struts and weld in patches to get the rear fairing fitted properly.  For some reason, four of the rear fairing mounts had to be re-positioned in order to be able to get the Dzus fasteners to engage easily (more-or-less!)
« Last Edit: February 24, 2018, 07:36:22 AM by Koncretekid »
We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!

Offline Koncretekid

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Re: Rigid rear conversion to single shock swingarm APS-PG bike
« Reply #44 on: February 24, 2018, 08:11:57 AM »
Rear view showing rear wheel clearance to tail. I'll be able to extend the fairing by 3-4" to stay within the 10" rule.
« Last Edit: February 24, 2018, 08:14:08 AM by Koncretekid »
We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!