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Old 05-16-12, 07:27 AM   #1
GordoTrek
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carbon fork on 90's steel mountain bike

besides the cost...
does adding a carbon fork mess with geometry of the bike that much ? if you at least get similar rake angle on the fork, will the less weight make a big difference?
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Old 05-16-12, 08:08 AM   #2
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When in the 90's? if pre '95 then possibly as they were designed for <80mm travel, '95 and beyond you should be OK, would also look at your headset, it is much easier to find a 1" 1/8th fork than 1", although they are around if you look.

For weight, this will depend on the fork, if full carbon, should be lighter than a steel fork, if a carbon / alu mix, then probably the same, either should be lighter than a suspension fork.
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Old 05-16-12, 09:08 AM   #3
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i'd be interested in how you plan to address front braking. it was always a concern when i thought about doing this on an MTB.
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Old 05-16-12, 09:26 AM   #4
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I'd look for one that is as close to what you have as possible in rake and axle to crown length (there are various options out there) as well as mounts for whatever brakes you plan to use (canti/linear or disc). Depending on the quality/weight of your current fork and the quality/weight of the new one, you'd probably shed at least a pound, more if your current fork is suspension.
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Old 05-16-12, 09:44 AM   #5
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+1 Need to check your headtube: 1" or 1 1/8". If it's 1" your options will be limited.

I'd go for a non-suspension-corrected fork, or something meant for less travel.

As far as weight, I'd say anything more than a half a pound will make a "significant" difference. If you drop a pound or more IMO the change is worthwhile.
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Old 05-17-12, 10:11 AM   #6
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You may find that you went through the expense and hassle only to find that it doesn't ride as well as a good old steel fork.
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