Mountain Biking - 80mm to 100mm??

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Leviathan
05-01-05, 11:31 AM
My first question is this: Are bike frames designed for either 80mm or 100mm forks? If not, what will the ill effects of replacing a stock 80mm fork with a 100mm fork? Hope that all makes sense.

phantomcow2
05-01-05, 11:34 AM
bike frames are not designed for a single range of travel. Most pure XC frames i have come across are designed for 80. A lot of it has to do with the height of the fork. Im sure Raiyn will expound more on this one
Leviathan
05-01-05, 01:55 PM
Help me guys . . .

Drunken Chicken
05-01-05, 02:00 PM
Depends on the frame.
20mm shouldn't affect the geometry tragically, although it could kill your frame warranty.
seely
05-01-05, 02:30 PM
Totally depends on the frame.
swifferman
05-01-05, 02:41 PM
A lot of common frames can use both 80mm or 100mm forks without altering the geometry of the bike enough to cause problems. It'll handle differently, but not too badly.

The hardrock, rockhopper, kona frames, trek 4300/4500 are the most commonly available bikes and they can easily use 100mm of travel if they're using 80mm or vice versa.
Raiyn
05-01-05, 02:57 PM
Depends on the frame and how old. Give me something to work with. Your steering will be slowed somewhat (which may not be a bad thing if your bike felt twitchy) and it will be noticable if you spend a lot of time on the bike.
Like I said I need a bit more info
Leviathan
05-01-05, 02:58 PM
Felt RXC
Raiyn
05-01-05, 02:59 PM
The new one? Like I said above it would probably make it a bit less of a racy feel but it won't hurt things. Just don't ask to put a 120+mm travel fork on something like that :D
Leviathan
05-01-05, 03:01 PM
Yeah the new one....thanks raiyn
Raiyn
05-01-05, 03:02 PM
Yeah the new one....thanks raiyn
No sweat