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Old September 8th, 2009, 12:04 PM   #1
Kaiser
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Default Acceptable A-C for a 94 Yo

What kinda range should the axle to crown measurement be for a 94 Yo? Anyone running tall forks? I've got some 1" judys but travel look long, A-C comes in at 420mm, any thoughts?
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Old September 8th, 2009, 12:45 PM   #2
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What kinda range should the axle to crown measurement be for a 94 Yo? Anyone running tall forks? I've got some 1" judys but travel look long, A-C comes in at 420mm, any thoughts?
That isn't really that long an A-C, even for early suspention adjusted frames. I have a standard Mag21, a long travel Mag21 and a handful of 63mm SIDs. They range from ~413mm, 420mm and 435mm respectively. The long travel Mag 21 is currently on my 93 Monster (pre corrected geo) and the ride is just fine. Once you factor in sag, the A-C is actually probably down to 410mm. So the Monster is maybe off half a degree or a degree at most with that fork on it.

I currently have a 63mm SID on my 95 IF Deluxe and 95 Yo and the geo is spot on when you factor in sag.
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Old September 8th, 2009, 5:40 PM   #3
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Cheers IF52, I think what threw me was the stanchions, theres about 100mm showing and they started to look a little long.
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Old September 8th, 2009, 7:15 PM   #4
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Kaiser,

A little info for ya..

An original Yo uncorrected is 394mm

A suspension corrected 63mm BOI is 401mm

A suspension corrected 80mm BOI is 430mm

Michael gets good sag out of his forks cause he's larger than the average bear, your milage may vary

cheers,

rody
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Old September 8th, 2009, 9:06 PM   #5
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Kaiser,

A little info for ya..

An original Yo uncorrected is 394mm

A suspension corrected 63mm BOI is 401mm

A suspension corrected 80mm BOI is 430mm

Michael gets good sag out of his forks cause he's larger than the average bear, your milage may vary

cheers,

rody
Hey! I don't get that much sag!

He's right though, I am larger than the average bear.

Don't forget that long travel Mag21 gets a massive 55-60mm of travel. So 10mm of sag isn't too bad.
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Old September 9th, 2009, 6:50 AM   #6
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See, I told my wife that 55mm was massive

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Old September 10th, 2009, 10:57 AM   #7
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cheers guys, I reckon a generous sag would be up my street too
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