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Discussion Starter · #1 ·
OK, swapped the freehub body to an XD driver on a 2014 40t rear hub. My question is whether or not the drive side, outermost spacer is a different width between the two hub standards? With the XD driver, my chain is rubbing on the inside of the stay and hangar - it's like it needs to be spaced 2-3mm more. The only thing I can think of is that the spacers are a different width and we didn't pay attention to which one was which when it was swapped. I didn't find any info on hopetech's site.

Any help is appreciated.

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I did the same swap last night, XD Driver to new 40T hub. I noticed the end caps were different. They both measure 19.5mm in width, but the one on the right is the one that came with the XD driver.

I haven't fit it to the frame yet so I can't speak for the chain clearance. Technology Metal Circle Cylinder Aluminium
 

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Discussion Starter · #3 ·
I think the different end caps aren't letting the cassette bottom out on the hub but instead it is bottoming out on the end cap causing the clearance issue. I hope my shop has the right end cap.

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Discussion Starter · #4 ·
I'm curious, should you install the XO1/XX1 cassette without the endcaps on the hub? If so, then I've got the wrong endcaps as mine have to be on first.

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How did you figure it out? I didn't do mine this way and has been working fine, but when removing the xo1 cassette it is difficult with the end cap on as the tool doesn't go deeply into the splines.


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Discussion Starter · #7 ·
I knew the endcap was in the way when installing the cassette, so I pulled it off and then installed the cassette. Once the cassette was on, the endcap popped on with no problem. It comes on/off without issue now but, it sure didnt when I tried it before.

Here is a picture of the endcap that goes with the Hope xd driver for 142x12.


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