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30mm offset lower triple (IMA) with 25mm upper (Cycle Cat) bad/impossible idea?

Started by Rudemouthsky, May 08, 2014, 04:33:04 PM

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Rudemouthsky

May 08, 2014, 04:33:04 PM
This may be a dumb question to begin so I apologize if that's so; but what effect would that have on the geometry of the bike, and is it even possible?

Cheers.


"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

Speeddog

#1
May 08, 2014, 09:33:03 PM
Forks won't go through both the lower and upper.
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Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

Rudemouthsky

#2
May 08, 2014, 10:10:32 PM
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

Speeddog

#3
May 08, 2014, 10:42:40 PM
Some bikes do have different offset between the upper and lower triples, but they're bored at an angle such that the forks will slide through.

IIRC, some early Triumphs were done that way.
Recently, the V-Rods were done that way, to make it *look* like a chopper rake, but not actually be that way.

- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

zippsub9

#4
May 09, 2014, 06:56:36 AM
You, sir, are a glutton for punishment.  I had trees like that on my 96 FXSTC.  I would think this would only be possible with an eccentric steering head tube.  It seems like the fork angle may be too steep as stated.

Rudemouthsky

#5
May 09, 2014, 07:41:03 AM

   I wonder if the CC can be modified by a machinist to match the 30mm offset of the lower. Seems like there is enough meat on it. I swapped in the IMA's, went to a taller front tire/wider rear, and raised the rear end at the same time last year and it was a dramatic improvement in handling, specifically my ability to lean the bike over but I have no idea which of those mods is most responsible.
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

brad black

#6
May 09, 2014, 09:18:40 PM
you could probably force it on, i know people who have done things like that.

give it a whirl, see what happens.
Brad The Bike Boy

http://www.bikeboy.org

Rudemouthsky

#7
May 10, 2014, 12:53:45 PM
Quote from: brad black on May 09, 2014, 09:18:40 PM
you could probably force it on, i know people who have done things like that.

give it a whirl, see what happens.

Making a fool of myself so other fools don't have to since 1976... :-[  ;D
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

Rudemouthsky

#8
May 10, 2014, 12:57:27 PM
Considering how badly I've seen Brad roast people for asking questions way less stupid than this one, I consider myself quite lucky.  ;)
"while there is a lower class, I am in it, and while there is a criminal element, I am of it, and while there is a soul in prison, I am not free." -Debs

brad black

#9
May 10, 2014, 06:07:25 PM
i don't think i'm that bad.

i know people who have done it on race bikes due to trying stuff on the cheap.

http://www.ducatittandf1.com/viewtopic.php?f=25&t=1652&start=70  towards the bottom of page 8.
Brad The Bike Boy

http://www.bikeboy.org
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