Bicycle Mechanics - MTB Fork swap question

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mr,grumpy
07-21-10, 09:47 AM
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.

fietsbob
07-21-10, 09:55 AM
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.. .
mr,grumpy
07-21-10, 09:59 AM
All info from the words on the websites. No actual measurements were made on anything. Measure fully extended? As it sits? Rider on board?

cbchess
07-21-10, 10:23 AM
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)