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Hoss fork and geometry question.
Guest_wooders_*
post Mar 31 2009, 03:04 AM
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Hi there! Currently riding an 08 Hoss which has been a great bike. Really haven't had so much fun on a bike since my first BMX 20 years ago.

I've read a lot on the dramas of longer travel fork upgrading. I think I understand most of the theory about what it can do to geometry and therefore strength and handling but I'm wondering if I'm missing something.

The 08 Hoss was supplied with a DJ2 100mm fork which had a crown to axle length of 490mm. An 08 Rockshox Revelation 426 coil uturn has a crown to axle length of :

478mm @ 100mm travel
493mm @ 115mm travel
508mm @ 130mm travel

Obviously @ 130mm travel lifts the front up by nearly 20mm which would slacken the headtube a bit too much and make it a bit of a pain to turn. With the uturn wound down to 115mm the fork is at pretty much the same height as the original DJ2. Does this scenario preserve the original geometry and give you an extra 15mm of travel? I can see that at final 15mm of travel the bottom bracket would be lower but is there anything else going on that I should think about?

Theoretically speaking of course smile.gif


Cheers


Dale
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tech
post Mar 31 2009, 03:16 AM
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Thinking about thinking


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I'd be cautious, at full compression you'd maybe have a chance of getting the head tube too far ahead of the axle at full compression. The steering would tun super fast and maybe flick you off.


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Guest_wooders_*
post Mar 31 2009, 03:23 AM
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Cheers mate, point noted smile.gif
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Bobaloba
post Jun 29 2010, 05:10 PM
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QUOTE (wooders @ Mar 31 2009, 04:23 AM) *
Cheers mate, point noted smile.gif


Curious to find out how you got on (if you read this)...

I'm considering upgrading to these: Marzocchi


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tech
post Jun 29 2010, 05:29 PM
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Thinking about thinking


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You probably won't get a reply, someone tagged guest is no longer an active member.


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