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Old 07-21-10, 09:47 AM   #1
mr,grumpy 
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MTB Fork swap question

I want to to replace the OEM 63mm suspension fork on my Trek 820 with a rigid fork but the two cheep ones are rated to be correct for 85mm. Nashbar sells a carbon fiber fork for a hundred fifty bucks that is for" forks with less than 80mm of travel." but for less than the cost I can get a Rock Shox Dart 2. The carbon fork o rht e Dart would cost TWICE what I paid for the bike, so I'm hoping some one will say that i can replace with the 85mm correct fork.
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Old 07-21-10, 09:55 AM   #2
fietsbob 
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You measuring travel distance .. ? .. fork crown race to axle is another way to measure replacement forks

OEM get pallets of Boxes of parts , buying parts aftermarket , retail, in the US will cost more.

unless you travel to Taipei or Hong Kong, and buy stuff there.

closer to where it all is made.. .
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Old 07-21-10, 09:59 AM   #3
mr,grumpy 
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All info from the words on the websites. No actual measurements were made on anything. Measure fully extended? As it sits? Rider on board?
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"I'm built like a marine mammal. I love the cold! "-Cosmoline
"MTBing is cheap compared to any motorsport I've done. It's very expensive compared to jogging."-ColinL
Rides:
1999-ish Diamondback Sorrento (I'm not Dead Yet! I feal happy. I think I'll go for a walk!)
1980ish Raleigh Marathon (Vintage Steel)
2007 Gary Fisher Advance (giving the Sorrento a break)
2006 Trek 820 (Captain Amazing)
2010 Specialized Tricross (Back in Black)


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Old 07-21-10, 10:23 AM   #4
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just look to measure your Axle to crown measurement on your existing fork and look for something close - a little bit taller will be OK. If you go way too tall you will slacken your existing head angle and your steering will feel a bit sloppy. I personally like a slacker head angle - my first MTB had a 72* head angle (quick steering). Now My bike has 69* head angle (more relaxed steering)
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