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Author Topic: My old mule.  (Read 24513 times)

DugB

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Re: My old mule.
« Reply #45 on: March 23, 2010, 12:41:03 pm »
Looking at the SC Superlight I'm amazed at how similar it is to the X57 bikes...I mean, the pivot point is the same...if the swingarm had that taller truss, and the shock mounted differently, it's almost the same frame. Makes me think that the sooner we have a workable, standardized solution for the rear shock adapter the sooner we'll be able to achieve at least some of the advantages of this frame, and the advanced shocks it's able to use.

- Doug :-)
5500c
956 LE (thanks, Terry!)
955 (small, for my wife)
Cannondale SuperVs
'62 Puch 250 SGS
'67 BMW R60/2
'52 BMW R67/2
a very understanding wife

fyrstormer

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Re: My old mule.
« Reply #46 on: March 23, 2010, 01:53:34 pm »
The 9-series frame would work like the Superlight if a set of rigid braces could be installed into the V-brake bosses and the strut could be clamped into those braces, to make a rigid triangle. Then a strut-to-eyelet adaptor could be attached to the strut where the shock normally attaches, and the shock could connect to the adaptor.

However, I'm not sure it's really worth the effort, because all you'd have then is a funny-looking hacked-together "normal" single-pivot bike. A Pro-Flex wouldn't continue to be a Pro-Flex if it no longer had the shortcomings of its design any more than than if it no longer had the advantages of its design.

Among other things, the strut design on a Pro-Flex gives the swingarm an incredibly linear leverage ratio across the span of shock travel; one of the big disadvantages of most single-pivot bikes is the the way the shock gets tilted towards vertical as the suspension compresses, thus giving the swingarm/triangle an increasing leverage ratio, which makes the suspension "feel" much softer as it compresses. That is probably a bigger factor in the "mushy" feel of older single-pivot bikes than anything else.

I think if someone wants a Superlight, they should just buy a Superlight.
« Last Edit: March 23, 2010, 01:59:13 pm by fyrstormer »

purple gerbil

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Re: My old mule.
« Reply #47 on: March 24, 2010, 01:08:19 pm »
Besides the shock position it's just a 862 in wolfs clothing ;D

Hmmm if i just weld a bracket here :P & install a fox shock and fit a longer seatstay im good to go ;D

VOILA!! a superlight without the light >:(

Wonder if a 857 swingarm would fit the old girl to give me a little extra space to squeeze in a bigger shock ::)
THE 1 AND ONLY PURPLE GERBIL...

1991 ALPINESTARS AL-MEGA DX.
1992 PRO-FLEX 862.
1994 PRO-FLEX 954.
1994? GT RTS.
1998 GT LTS DS 2000.
1998 K2 4000se PROJECT.

fyrstormer

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Re: My old mule.
« Reply #48 on: March 24, 2010, 01:10:34 pm »
I dunno man, but that would be a crazy-long wheelbase. It would be like cornering on a dualie. And I thought my 756 was forward-biased enough already... :o

Spokes

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Re: My old mule.
« Reply #49 on: March 24, 2010, 04:02:19 pm »
Would be good for Hill Climb racing, as long as youve got the legs for it  ;D ;D

Chris
4000
857
856's
OZx modern build
757
4500
957
955
5000
no room in big shed but always room for one more!

purple gerbil

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Re: My old mule.
« Reply #50 on: March 25, 2010, 05:33:47 am »
Anybody want to take some measurement's for me??

Pivot to dropout......?

Pivot to s/arm brace.....?

Seat stay length......?

And B/B to ground height......?

Thank you!!!!
THE 1 AND ONLY PURPLE GERBIL...

1991 ALPINESTARS AL-MEGA DX.
1992 PRO-FLEX 862.
1994 PRO-FLEX 954.
1994? GT RTS.
1998 GT LTS DS 2000.
1998 K2 4000se PROJECT.

fyrstormer

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Re: My old mule.
« Reply #51 on: March 26, 2010, 08:56:59 pm »
Got my swingarm back from shovelon today. Here's what it looks like with a coat of primer:







Good stuff.  :D

Thunderchild

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Re: My old mule.
« Reply #52 on: March 26, 2010, 09:24:44 pm »
Oh my...that is beautiful.  I am speechless

Thunderchild
Had: 953, 756
Have:
855 cracked frame
5000
Oz
Evo frame

fyrstormer

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Re: My old mule.
« Reply #53 on: March 26, 2010, 11:38:13 pm »
As good as the factory welds, amirite?

Unfortunately the silver paint I got is darker than the original paint. I should've seen that coming, and actually I did, but I figured it would be close enough for government work. I should probably just paint the whole thing, but I'm too excited to go ride it tomorrow, and I don't have a new set of decals anyway. Maybe I'll send it out for a proper paint job this coming winter, when I've nothing better to do with it.

Spokes

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Re: My old mule.
« Reply #54 on: March 27, 2010, 03:55:21 am »
VERY NICE , well done to you both.

Chris
4000
857
856's
OZx modern build
757
4500
957
955
5000
no room in big shed but always room for one more!

orange

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Re: My old mule.
« Reply #55 on: March 27, 2010, 06:34:53 am »
that is a great weld (almost said 'cracking' then, but thought better of it :D)
'95 855
'91 Diamond Back Topanga (project: 1st MTB)
'06 Surly Karate Monkey 29er
Custom built Edelbikes 29er #1104

PF flyer

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Re: My old mule.
« Reply #56 on: March 27, 2010, 07:29:05 am »
Glad you put up the pictures . Thinking of doing this modification too, so I'll have a pro flex for riding in the mud. Looks like great welding shovelon!      PF
756,855,2-856's,857,1000,3000,4000,EVO 4,

shovelon

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Re: My old mule.
« Reply #57 on: March 27, 2010, 09:35:38 am »
amirite?

Unfortunately the silver paint I got is darker than the original paint. I should've seen that coming, and actually I did, but I figured it would be close enough for government work.

What's Amirite????

And either you or someone you know is an engineer(government work)?   ;D ;D ;D
OzM,(Ozzie)
K24000,(Red)
957small,(Shorty)
957Large,(Monty)
956 LE,(Peirce)    <Sold>
Offroad "Proflex" (Serrota),
Serotta CST  titanium softail
McMahon FS

fyrstormer

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Re: My old mule.
« Reply #58 on: March 27, 2010, 03:09:50 pm »
amirite?

Unfortunately the silver paint I got is darker than the original paint. I should've seen that coming, and actually I did, but I figured it would be close enough for government work.


What's Amirite????

And either you or someone you know is an engineer(government work)?   ;D ;D ;D
Amirite == Am I Right, slurred together.

And yes, I'm an engineer working for a defense contractor.  ;D In case anyone's curious, I've learned during my (thus far) short career that "close enough for government work" is ~75%.

More pics!




shovelon

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Re: My old mule.
« Reply #59 on: March 27, 2010, 03:59:15 pm »
Lookin' good Shawn!
OzM,(Ozzie)
K24000,(Red)
957small,(Shorty)
957Large,(Monty)
956 LE,(Peirce)    <Sold>
Offroad "Proflex" (Serrota),
Serotta CST  titanium softail
McMahon FS