 Wrap your head around this suspension design
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Joined: Jan 2005
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"Lighten up, Francis."
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OP
"Lighten up, Francis."
Joined: Jan 2005
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Pretty cool... a rigid-look with suspension.  embiggen Full post at Biltwell
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Re: Wrap your head around this suspension design
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Re: Wrap your head around this suspension design
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not hard to do at all. it's interesting, though i gotta wonder on its effectivity. also, while interesting, i don't think it looks nearly as good as a true soft tail type setup. Though i'm certain that's not the point, i must ask what the pointis in having a hard tail in the first place.
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Re: Wrap your head around this suspension design
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Joined: Mar 2009
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Stickman Yogi
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Stickman Yogi
Joined: Mar 2009
Posts: 12,964 |
It looks heavy. Would be nice to see a zoomed out picture.
Live to love, love to live.
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Re: Wrap your head around this suspension design
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Joined: May 2009
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Member
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Member
Joined: May 2009
Posts: 96 |
Sort of reminds me of an old Amen Savior set up, but tons slicker.
'04 Speedy. Emgo 19" turn-outs, Polaris bellmouth, 142/45 Thrux needles, 3.5 turns. Pod filters My Bike
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Re: Wrap your head around this suspension design
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Joined: Aug 2010
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Learned Hand
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Learned Hand
Joined: Aug 2010
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Not the right look for me. 
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Re: Wrap your head around this suspension design
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Joined: Apr 2008
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Loquacious
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Loquacious
Joined: Apr 2008
Posts: 3,937 |
Quote:
...i must ask what the pointis in having a hard tail in the first place.
Simplicity, rigidity, longevity, low cost maintenance, and most of all, SIMPLY BAD-ASS!! 
And you may see me tonight
With an illegal smile
J. Prine
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Re: Wrap your head around this suspension design
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Joined: Apr 2008
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Loquacious
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Loquacious
Joined: Apr 2008
Posts: 3,937 |
BRILLIANT!!!  (though I'd just stay with the Ol' Skewl rear. It's STILL brilliant!) 
And you may see me tonight
With an illegal smile
J. Prine
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Re: Wrap your head around this suspension design
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Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
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OP
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
The more I thought about it this didn't belong in the Custom Corner forum. ::sigh::
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Re: Wrap your head around this suspension design
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Joined: Apr 2008
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Loquacious
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Loquacious
Joined: Apr 2008
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Dang John, you REALLY should be thinkin' about other things!  ANY OTHER THINGS!  (Just sayin') 
And you may see me tonight
With an illegal smile
J. Prine
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Re: Wrap your head around this suspension design
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Joined: Feb 2007
Posts: 23,225 Likes: 62
Fe Butt
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Fe Butt
Joined: Feb 2007
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Kind of reminds me of an over complicated version of the plunger frame. The 2 sides are not tied together like with a swing arm so I imagine some similar problems as a plunger frame or sprung hub but perhaps to a lesser degree due to dampening. Cool if over complicated idea though.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Wrap your head around this suspension design
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Joined: Oct 2007
Posts: 1,680
Learned Hand
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Learned Hand
Joined: Oct 2007
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Reminds me of the old poser: "If our knees bent the other way.. What would chairs look like?"
Thom
I might be wrong, I sometimes am.
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Re: Wrap your head around this suspension design
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Joined: Jan 2005
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Learned Hand
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Learned Hand
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Reminds me of a plunger as well, probably has less unsprung weight than a full swingarm or softtail, would suit something like a Buell rather than a cruiser I think.
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Re: Wrap your head around this suspension design
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Joined: Feb 2005
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Fe Butt
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Fe Butt
Joined: Feb 2005
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Actually, I think this design is less a take on the old plunger rear suspension than it is..."the world's shortest swing-arm design".
Remember, plungers didn't have a pivot point in its design(as does the design pictured above), and that the rear axle on a plunger vertically "floated" on springs and was without a pivot point.
Yep! Just like a good Single Malt Scotch, you might call me "an acquired taste" TOO.(among the many OTHER things you may care to call me, of course)
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Re: Wrap your head around this suspension design
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Joined: Jan 2007
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So from what I can see, and only imagine it would have to be shaft driven, as keeping a chain or belt on tension would be a nightmare.
“There is no heaven, there is no ******, except here on Earth.â€
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Re: Wrap your head around this suspension design
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Joined: Mar 2005
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Learned Hand
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Learned Hand
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Quote:
Quote:
...i must ask what the pointis in having a hard tail in the first place.
Simplicity, rigidity, longevity, low cost maintenance, and most of all, SIMPLY BAD-ASS!!
That about sums it up.
Strangler
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Re: Wrap your head around this suspension design
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Joined: Feb 2007
Posts: 23,225 Likes: 62
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,225 Likes: 62 |
Quote:
Actually, I think this design is less a take on the old plunger rear suspension than it is..."the world's shortest swing-arm design".
Remember, plungers didn't have a pivot point in its design(as does the design pictured above), and that the rear axle on a plunger vertically "floated" on springs and was without a pivot point.
What reminds me of the plunger is that they are only connected side to side by the axle unlike a swing arm. That would allow one side of the axle to move more than the other cocking the wheel.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Wrap your head around this suspension design
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I think you would need a fairly decent bump to activate the short swing arm and the ride would have to be fairly harsh.
Anything is better than a rigid and a chain tensioner of some kind would definately be needed . Got an shots of the other side ? please .
Peace in the country when the sun goes down , the corn is gettin' high
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Re: Wrap your head around this suspension design
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I'm not very mechanical but looking at this, wouldn't the rear end 'squat' when the rear brakes are applied?
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Re: Wrap your head around this suspension design
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Joined: Jan 2005
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"Lighten up, Francis."
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OP
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
Probably not as much as the front end dives on braking.
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Re: Wrap your head around this suspension design
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Joined: Feb 2005
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Fe Butt
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Fe Butt
Joined: Feb 2005
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Quote:
I'm not very mechanical but looking at this, wouldn't the rear end 'squat' when the rear brakes are applied?
I think you might be right there, Jim. While looking at the picture of that design again, I tried to imagine what effect the centrifugal force might have on the rotation of the short "swingarm" once the brake is applied. And the way I'm picturing it, yep, I think the axle would indeed rotate upward, causing the shock to compress, and thus as you said causing the rear end to "squat".
Yep! Just like a good Single Malt Scotch, you might call me "an acquired taste" TOO.(among the many OTHER things you may care to call me, of course)
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Re: Wrap your head around this suspension design
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Like a duck ?
Last edited by Silky; 04/09/2011 5:22 AM.
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Re: Wrap your head around this suspension design
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Joined: Aug 2008
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Learned Hand
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Learned Hand
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Quote:
Quote:
I'm not very mechanical but looking at this, wouldn't the rear end 'squat' when the rear brakes are applied?
I think you might be right there, Jim. While looking at the picture of that design again, I tried to imagine what effect the centrifugal force might have on the rotation of the short "swingarm" once the brake is applied. And the way I'm picturing it, yep, I think the axle would indeed rotate upward, causing the shock to compress, and thus as you said causing the rear end to "squat".
It shouldn't squat. The pivot for the swing arm is in front of both the axle and the mount point of the brake.
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Re: Wrap your head around this suspension design
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Joined: Jan 2005
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Loquacious
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Loquacious
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Quote:
not hard to do at all. it's interesting, though i gotta wonder on its effectivity. also, while interesting, i don't think it looks nearly as good as a true soft tail type setup. Though i'm certain that's not the point, i must ask what the pointis in having a hard tail in the first place.
One thing I see is that the suspended mass is reduced since the only moving part is the axle mount and wheel versus the whole swing arm. Seems like it would give a very rigid setup compared to a standard swingarm setup.
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