Can someone explain...
 

[Closed] Can someone explain different rear axle sizes please?

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I'm starting to see different sizes of rear axles, never really noticed them before. Are they compatible with all frames? If not how does the axle/hub/frame compatibility work out?

Thanks in advance.


 
Posted : 19/10/2012 10:17 am
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I think the ban hammer is about to smack you on the head...


 
Posted : 19/10/2012 10:20 am
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Some frames have interchangable rear dropouts to make them compatible with different axle sizes. If the frame does not have these then it will only be compatible with the size it was originally designed for.


 
Posted : 19/10/2012 10:21 am
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Not after a new pair of wheels are you?

I hear PeterPoddy has some going


 
Posted : 19/10/2012 10:23 am
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For the record, I'm not getting banned, and the episode with Peterpoddy has been resolved, though it should never have been taken public, so that's that, not going to mention it again.


 
Posted : 19/10/2012 10:26 am
 deus
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150mm (and above, think Tomac did a 165mm) DH bikes/ long travel FR bikes.

135mm "standard" MTB, QR, 10mm, 12mm bolt through. Maxle version too.

142 Syntace 10mm QR (i think) on some bikes including newer Trek full sus. Some hubs can be converted between 135/142, DT Swiss, Hope).

157 Syntace, as per 142, just a downhill version.

might be wrong though.


 
Posted : 19/10/2012 10:46 am
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The 142 is 12mm, and there's the Syntace X12 and Shimano E-Thru variants (and maybe others?). Same wheels I think, just different axle/threads?


 
Posted : 19/10/2012 10:56 am
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Doug Bradbury used to make an offset 145mm for the manitou frames once upon a time I believe. Not that its any help here.


 
Posted : 19/10/2012 10:59 am
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Might be a silly question but why different lengths (widths).

I was led to believe it was the girth that counted not the length.


 
Posted : 19/10/2012 11:02 am
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I see what you did there...


 
Posted : 19/10/2012 11:06 am
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Might be a silly question but why different lengths (widths).

I beleive its so a stronger wheel can be built - equal dishing of the spokes.


 
Posted : 19/10/2012 11:08 am
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And then there are the Fatbike axles......


 
Posted : 19/10/2012 11:13 am
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Ok, so there are some big old hubs out there than need a bigger axle. Don’t they have chain line issues?


 
Posted : 19/10/2012 11:13 am
 deus
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That's why you get DH bikes with 83mm or 100mm bottom brakets


 
Posted : 19/10/2012 11:26 am