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Old 09-13-12, 10:58 PM   #1
psy
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litespeed ocoee to 69er conversion-what forks?

Any help would be appreciated.Its a 17 inch bike with 2004 sid rock shox.I was looking at white industries carbon fiber but not sure if I should get 445 or 465 mm .How do I measure and calculate for the right size in order to keep the geometry close?Thanks
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Old 09-14-12, 02:36 AM   #2
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Is the 69er the bike with a 26" wheel one end and a 29" one the other?
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Old 09-14-12, 07:04 AM   #3
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yes, i want to put a 29 inch tire on the front .
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Old 10-29-12, 09:11 AM   #4
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Put this Salsa 26" fork on my Ocoee('99), it is a good one...replaced the old sprung suspension on mine to rigid.

They have 26 and 29 models.

http://salsacycles.com/components/cromoto_grande_29er


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Old 10-29-12, 04:33 PM   #5
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26" rim diameter = 559mm
29" rim diameter = 622mm

So assuming you use the same size tires, you're looking at a 31.5mm increase in rim radius. So I would measure the axle-to-crown (ATC) distance on your current setup and try to get a fork with a ATC of 31.5mm less than that. Make sure to measure when you're actually on the bike to take the sag of the fork into account.

Realize that a few mm is not going to matter. In fact, an inch or two in each direction is probably fine depending whether you want the handling to be "quicker" or "slower."
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Old 10-29-12, 04:45 PM   #6
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I'm guessing the bike is kinda on the XC side and designed for 440-ish axle-crown. Measure your Sid's ATC and if it's in that neighborhood and you like the current geo I'd go for the 445.
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