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  #1  
Old 04-10-2008
Freddy Freddy is offline
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Rear Wheel Alignment - Rear Caliper Movement

Hi All,

I am trying to make sure the rear wheel is running true on my 97 360 and was wondering how everyone does it? I am currently measuring the length of the thread on the adjusting bolt, but today I thought I would do some measurements from certain positions on the swing arm/frame and got some varying fugures.....

This has all come about because I have noticed that when I apply the rear brake the caliper moves on an angle as if the rear wheel/disc is on an angle. I have checked the slides on the caliper and there are both free, could it be just uneven pad wear??

Cheers,

Freddy.
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Old 04-10-2008
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andrewktm450 andrewktm450 is offline
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Freddy,

have a look @ http://www.dirtbikeworld.net/forum/s...ad.php?t=32776 to see if that helps explain what you've found
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Old 04-10-2008
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mudrat mudrat is offline
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do a search, I'm sure this has been talked about before.

I measure from centre of the rear axle to the centre od the swingarm pivot.


I made up the above tool for the job out of some bits and pieces I had lying around the shed. But Ive seen others use a piece of heavy wire and a zip tie cut to a point.

I've found on all my bikes the alignment marks to be out around 3mm, some more, some less, but 3mm at the axle is about 15mm at the tyre, which not only causes brake pads to wear uneven but stuffs up how your bike tracks as well.
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Old 04-10-2008
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Interesting!
I've always trusted the measuring marks on the swingarm, think i'll measure to see how accurate, thanks.
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Old 04-10-2008
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nawill nawill is offline
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I dont think it will matter a great deal...just use the alignment marks and be done with it.
It is pretty rare that your disc runs true, with even wear on the pads etc. anf the caliper floats to accomadate a bit of misalignment and there is plenty of tolerance in the chain/sprockets to cope with a bit of misalignment, it copes with being chocked up with mud and crap all the time.

as long as it is not glaringly obvious that it is out of alignment.
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Old 05-10-2008
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wayne ferris wayne ferris is offline
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Quote:
Originally Posted by JCat View Post
Interesting!
I've always trusted the measuring marks on the swingarm, think i'll measure to see how accurate, thanks.
+1
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Old 05-10-2008
GOTTA GO FASTER GOTTA GO FASTER is offline
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Quote:
Originally Posted by mudrat View Post
do a search, I'm sure this has been talked about before.

I measure from centre of the rear axle to the centre od the swingarm pivot.


I made up the above tool for the job out of some bits and pieces I had lying around the shed. But Ive seen others use a piece of heavy wire and a zip tie cut to a point.

I've found one all my bikes the alignment marks to be out around 3mm, some more some less, but 3mm at the axle is about 15mm at the tyre, which not only causes brake pads to waer uneven but stuffs up how your bike tracks as well.

*@#&*@#&*@#&*@#&ing brilliant, great tip
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Old 05-10-2008
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bit more info here

http://www.dirtbikeworld.net/forum/s...051#post297051


http://www.dirtbikeworld.net/forum/s...heel+alignment
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Old 06-10-2008
rhys77 rhys77 is offline
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Quote:
Originally Posted by mudrat View Post
do a search, I'm sure this has been talked about before.

I measure from centre of the rear axle to the centre od the swingarm pivot.


I made up the above tool for the job out of some bits and pieces I had lying around the shed. But Ive seen others use a piece of heavy wire and a zip tie cut to a point.
Thats what I use, thin steel rod with a 90 deg. bend at 1 end and a zip tip at the other. detailed info here - http://www.advrider.com/forums/showthread.php?t=161521

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  #10  
Old 08-10-2008
Freddy Freddy is offline
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Thanks for the tips, I will be making up a similar thing to mudrats, looks like a very handy bit of kit!
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