how to determine if forks are straight
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From: NOVA
how to determine if forks are straight
Hey guys, I wrecked my bike and am just wondering how I would go about determining whether the forks are straight.
any advise would be appreciated.
any advise would be appreciated.
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From: Northern Michigan
The only accurate way of doing it is to dismantle your forks and use a dial indicator to measure the runout of the tubes in thousands of an inch. You'll have to get the specs, but I dont think the runout can exceed .005". But again, I'm not sure of the exact spec. I dont know of a way to do it while the forks are still assembled. Unless its a really bad bend, it wont be obvious to the naked eye.
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From: Bethel, Ohio
If it was me, I would take it to someone with experience in repairing crashed bikes. They would probably know what to look for and be able to tell you if they are bent or not. If in doubt, I would go ahead and replace them so you aren't worrying about it
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Bad luck wrecking her mate 
If you are even a little concerned about them ...
take the time (a couple of hours max
) pull them out and get them checked by someone with the gear to do it right..
She wont feel quite right to ride if they are even a little bent ...
If you are even a little concerned about them ...
take the time (a couple of hours max
) pull them out and get them checked by someone with the gear to do it right..She wont feel quite right to ride if they are even a little bent ...
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From: NOVA
Thanks for all the replies everyone.
Here's my story...
https://cbrforum.com/forum/f4i-main-forum-11/wrecked-89384/
But from what I can see they *look* straight. But I suppose the eyes can be decieving.
Here's my story...
https://cbrforum.com/forum/f4i-main-forum-11/wrecked-89384/
But from what I can see they *look* straight. But I suppose the eyes can be decieving.
Siggy Maker & All Round Good Guy
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From: Southern Cali baby!
Quite a story. Looks like you have done a few burnouts on that rear too lol.
Like you said they look fine though. What i would do is throw about a hundred measurements on em. Mark them in symmetrical locations. Write down all of your numbers. It should all balance. If it doesn't add up then you will know something is awry. Possibly, even graph the numbers and scale everything down into a drawing.
Like you said they look fine though. What i would do is throw about a hundred measurements on em. Mark them in symmetrical locations. Write down all of your numbers. It should all balance. If it doesn't add up then you will know something is awry. Possibly, even graph the numbers and scale everything down into a drawing.
Last edited by Endless; Apr 1, 2009 at 05:18 PM. Reason: brain term malfunction
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Thanks for all the replies everyone.
Here's my story...
https://cbrforum.com/forum/showthread.php?t=89384
But from what I can see they *look* straight. But I suppose the eyes can be decieving.
Here's my story...
https://cbrforum.com/forum/showthread.php?t=89384
But from what I can see they *look* straight. But I suppose the eyes can be decieving.
I just checked your other story thread ..wowww! shes was wrecked alright
No wonder the buzzards are circling
I spose thats one good thing about this place ...nuthin goes to waste ..
good luck with your parting out mate ...
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From: NOVA
Quite a story. Looks like you have done a few burnouts on that rear too lol.
Like you said they look fine though. What i would do is throw about a hundred measures on em. Mark them in symmetrical locations. Write down all of your numbers. It should all balance. If it doesn't add up then you will know something is awry. Possibly, even graph the numbers and scale everything down into a drawing.
Like you said they look fine though. What i would do is throw about a hundred measures on em. Mark them in symmetrical locations. Write down all of your numbers. It should all balance. If it doesn't add up then you will know something is awry. Possibly, even graph the numbers and scale everything down into a drawing.
Siggy Maker & All Round Good Guy
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From: Southern Cali baby!
Crash detective 101 says: It could be from the initial incident. 150 yrds past the instability point and you were still flying indicates that you probably had the rear brakes locked rather than the fronts which would have slowed you easily within 25yrds. ie: flat spot that looks like balding from burnouts. I think i read somewhere that over 75% of your breaking should come from the front. I suppose it would be kind of hard to feather the front in a "death wobble" though.