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· Registered
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438 Posts
The way that front end is set up looks deadly, and not in any good way. There is something seriously wrong there. The linkage arms should be close to the same length and approximately parallel, not at sharp angles to each other. The way that is set up your trail is going to change radically as the suspension moves, which isn't good for handling. Even BAD trail is somewhat manageable, as long as it isn't changing all the time. It looks to me like the hammer plates (the upper and lower trees at the neck) are a lot farther apart than the pivot points on the girder. Maybe it was built for a bike with a shorter neck and then modified to bolt onto this one?
The girder hitting and bending the spring back is a result of this issue, not the main issue.
 

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438 Posts
So I blew up one of the pics, taken from the side, and it looks like there is a huge spacer between the bottom of the neck and the lower bearing cup. Why on earth would anyone do that? If the spacer is removed and everything set up right I'd bet that the geometry would be much better.
 

· Motorcycle dipshit
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4,104 Posts
1) This is not the way to do an intro, read the fuckin' stickies.
II) That front end smells like a Jake Robbins, possibly. Only girder I am aware of where plates join the tubes.
C) Whizzbang is on the money. That thing is dangerously out of whack. (Constantly changing trail is no big deal; look at telescoping front ends.) But fuck, the linkages are fighting one another. I am sure that was adapted from a Jap bike and the guy who adapted it was a fucking moron. That spring is an accident waiting to happen... take that shit apart carefully and don't run that again.

Welcome the board. You got fucked-up shit and a ton of people to tell you how to fix it right now. Congrats; you've joined a long list of morons.
 
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