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This is proof why you need to obey the 20mm rules when it comes to forks.

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This is proof why you need to obey the 20mm rules when it comes to forks.

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Old 12-03-05, 06:10 PM
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This is proof why you need to obey the 20mm rules when it comes to forks.

Picture Borrowed from East Coast Hucker at ridemonkey.

Remember now, Dual crowns on dirtjump bikes don't mix, unless you have a bike like an evil imperial.
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Old 12-03-05, 06:18 PM
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Ouch!
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Old 12-03-05, 06:46 PM
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*tear* i love that frame so much

well noone told my bro that when he put a friggin ZZYZX on his ROCKY MOUNTAIN HAMMER!

and it's been good for about the last 5 years.
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Old 12-03-05, 08:15 PM
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Alittle duct tape and some JB weld, its as good as new. I'll even let Gastro or Kona test ride it.
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Old 12-04-05, 08:51 AM
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Originally Posted by revmonkey
*tear* i love that frame so much

well noone told my bro that when he put a friggin ZZYZX on his ROCKY MOUNTAIN HAMMER!

and it's been good for about the last 5 years.
A ZZYZX!!!! Does he hang out with Fred Flinstone as well?


Originally Posted by KonaRider24
Remember now, Dual crowns on dirtjump bikes don't mix, unless you have a bike like an evil imperial.

So you are saying I should swap my fork on my freeride bike when it is used as my dj bike?

Originally Posted by mtnbiker66
Alittle duct tape and some JB weld, its as good as new. I'll even let Gastro or Kona test ride it.
Actually, drill a few holes after the JB weld, wrap some safety wire through it and then wrap in duct tape.


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Old 12-04-05, 09:55 AM
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Bleh, who needs duct tape, I use superglue. xD
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Old 12-04-05, 02:17 PM
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what is the 20mm rule? ive never heard of it
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Old 12-04-05, 02:29 PM
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+-20mm of the original fork installed is your max clearance for acceptable fork upgrade unless otherwise specified. Basically if you bike came with a 120mm fork max you 'should' run is 140mm give or take.

Unless he is talking about a different rule.
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Old 12-04-05, 02:43 PM
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Originally Posted by revmonkey
*tear* i love that frame so much

well noone told my bro that when he put a friggin ZZYZX on his ROCKY MOUNTAIN HAMMER!

and it's been good for about the last 5 years.
https://www.pinkbike.com/modules/phot...ew&image=83128

This his?
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Old 12-04-05, 05:44 PM
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Originally Posted by wethepeople
ahahahahahahahahaha, thats freakin' crazy. what kind of moron would think that is in any way a good idea
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Old 12-04-05, 05:52 PM
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I think I see a crack on the top tube.
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Old 12-04-05, 06:26 PM
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Thats nothing

https://www.pinkbike.com/modules/phot...w&image=642136

https://www.pinkbike.com/modules/phot...w&image=530913 kinda cool

https://www.pinkbike.com/modules/phot...w&image=447041 to big even for a imperial

https://www.pinkbike.com/modules/phot...w&image=260603

https://www.pinkbike.com/modules/phot...w&image=217774 poor balfa

https://www.pinkbike.com/modules/phot...w&image=213882 kill it with fire

https://www.pinkbike.com/modules/phot...w&image=141064

People are stupid.
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Old 12-04-05, 06:29 PM
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And they all post on pinkbike, that's saying something.
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Old 12-04-05, 06:30 PM
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Originally Posted by wethepeople
OMFG DAMN RIGHT IT IS! HAHAHAHAHAAHAH!!!!

he changed his cranks to FSA by the way

edit: oh and the stem too

hey man, how did you find that?
Last edited by the wonginator; 12-04-05 at 06:43 PM.
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Old 12-04-05, 06:54 PM
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Originally Posted by wethepeople
Thats nothing

...
https://www.pinkbike.com/modules/phot...w&image=213882 kill it with fire
...
People are stupid.
I really hope that no one actually rides that thing! The angle of that fork and the lenths of those blades, they'll brake in a heartbeat!
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Old 12-04-05, 08:18 PM
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Originally Posted by revmonkey
OMFG DAMN RIGHT IT IS! HAHAHAHAHAAHAH!!!!

he changed his cranks to FSA by the way

edit: oh and the stem too

hey man, how did you find that?
I've always thought those forks look goofy, and I saw it the other day while searching. I just read your reply and found it again.

I frequent pinkbike quite a bit. And I must say the general population is a bunch of ******* with more money than brains. Thats why I'm not a member of the forums, I just go for the buy and sell and photo's.
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Old 12-04-05, 08:33 PM
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I have never seen that before.
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Old 12-04-05, 08:36 PM
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Every single one of those is pathetic.
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Old 12-04-05, 10:53 PM
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Originally Posted by Maelstrom
+-20mm of the original fork installed is your max clearance for acceptable fork upgrade unless otherwise specified. Basically if you bike came with a 120mm fork max you 'should' run is 140mm give or take.

Unless he is talking about a different rule.
Why is that? Isn't the real difference the race to axle length of the fork? If you had two 50 cm long forks, but they had different amounts of travel, I don't see how one is more likely to bust the frame. Please tell me if I'm wrong, because I'm in serious violation of this rule (70mm to 120mm).
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Old 12-05-05, 01:54 AM
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Regardless of axel to crown, the 20mm of travel rule stands.
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Old 12-05-05, 02:01 AM
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first off that santa cruz with the super monster turned single crown, are they effing serious with that? that'll get someone hurt. Secondly Super Monsters have always cracked me up, 300mm of travel (12 inches) that proposterous and lunatical, and cool if you need it.
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Old 12-05-05, 04:25 AM
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WTF!?
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Old 12-05-05, 05:59 AM
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obviously, some of those forks were put on those bikes as a joke - kind of like the picture of the hardtail i once posted with a moto fork installed on it and like pete fagerlin posting a shot of his turner 5 spot with 888s on it (posted on another forum).

take the second last link for example, do you really think someone's seriously going to install a super monster with the clamps at the top of the stanchions making it a mahoosive singlecrown fork for other than a joke?
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Old 12-05-05, 06:22 AM
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Originally Posted by duckliondog
Isn't the real difference the race to axle length of the fork? If you had two 50 cm long forks, but they had different amounts of travel, I don't see how one is more likely to bust the frame. Please tell me if I'm wrong, because I'm in serious violation of this rule (70mm to 120mm).
from what i've read, you're correct. the real difference is the axle to crown height of the fork as it's what will really change the head angle of the bike, changing the stresses on the head/top/down tube junction. the 20mm rule is a good general rule of thumb though.

in the end, it really depends on what the frame is built and designed to handle. frames like the evil imperial are designed to work with a wide array of forks and fork lengths. there are other frames too... you just gotta find out from the manufacturer what they've designed their bike to handle and go with that.
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Old 12-05-05, 09:44 AM
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Originally Posted by duckliondog
Why is that? Isn't the real difference the race to axle length of the fork? If you had two 50 cm long forks, but they had different amounts of travel, I don't see how one is more likely to bust the frame. Please tell me if I'm wrong, because I'm in serious violation of this rule (70mm to 120mm).
Again the rule is excluded based on manufacturer rules. Some bikes can handl 70 mm to 170mm forks. Most cannot though. They heavily stress the headtube and...rip them off. I imagine it would also depend on the kind of riding too. If you are smooth and not hucking stuff then it won't matter too much ..I just use the 20mm rule as a simple guideline

And yes a-c is better, must more accurate, but 20mm rule is easier to explain
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