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Old 09-12-12, 08:15 PM   #1
ncw
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Converted to 1x10

I like it.
I intended to just make a "look, pictures!" post not a "please help me" post, but I have a small issue... But first, the nice pics:

The e.13 chainguide is nice but a bit overpriced, I think.


...

Now my issue: chain line. I bought chainring spacers (4mm, I think) which fixed this, but then I got the chainguide and it wouldn't fit like that. I moved the spacers to the other side of the ring so they're not actually spacing anything now. I'm going to take it to my lbs and see what they say but I'm not sure what they could do about it.
Also, The chain rubs the guide slightly on gears 1 and 10, but that doesn't really concern me since I'm not in those gears much.

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Old 09-13-12, 07:35 AM   #2
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The bigger issue is it looks as if your lower linkage may hit the guide when your suspension compresses deeply enough. I'd double check that. I've got a Trance-X and a Reign-X, and both required the high mount for that reason. If you need it, you can buy just the alu part direct from e.13 for a bit less than a whole new guide. Sadly, it's the expensive bit. The replacement plastic guide part is cheap.

Swap to the high mount version, run the upper guide further in with the eccentric mount shim, if you can. Then use the ring spacers to improve the chainline. If you've got any spacers on your drive side crank/bb interface, get rid of them - that can gain a few mm as well.

Your upper guide part needs to be lower as well - in my experience, as low as you can get it without getting too much rubbing on the chain. It'll not only keep it quieter, but also keep the chain from bouncing around as much.

Not ideal, but ought to do the trick.
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Old 09-13-12, 04:49 PM   #3
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I'm glad you caught that before I took it on a trail. The derailleur is low-clamp so I assumed the guide should be too. I'm going to return it and get a high-clamp. I may check with my lbs to see if they have any guides before I order another e.13.

It looks like there is a spacer on the bb, but I didn't want to mess with it (press-fit bb) and the ring spacers are plenty long anyway. However, the guide can't move any farther in so I can't use the spacers anyway. I would need a guide about 4 or 5mm closer to the seat post.

And yes, I know it should be lower but I couldn't for some reason. I've already forgotten why.
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Old 09-13-12, 08:26 PM   #4
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I'm glad you caught that before I took it on a trail. The derailleur is low-clamp so I assumed the guide should be too. I'm going to return it and get a high-clamp. I may check with my lbs to see if they have any guides before I order another e.13.

It looks like there is a spacer on the bb, but I didn't want to mess with it (press-fit bb) and the ring spacers are plenty long anyway. However, the guide can't move any farther in so I can't use the spacers anyway. I would need a guide about 4 or 5mm closer to the seat post.

And yes, I know it should be lower but I couldn't for some reason. I've already forgotten why.
Just deflate your rear shock, compress the bike all the way down and see if anything rubs or hits. If it doesn't, your'e good to go, then only need to mess with the spacing.

If you do have an extra spacer in the drive side of the BB/crank interface, it's a super easy fix to get rid of it and move your chainline over, and swap the spacer to the other side - though you may not even need to do that. It won't be on the BB per se, but on the spindle of the crank.

MRP and Paul Components both make upper guides, but the tall mount version of them both (IMO) is not only flexier, but fuglier. Again, IMO, this is the one you want. I was wrong - you can buy the eccentric cams and the upper plactic bits alone, but not the main mount bits. Sucky.
http://get.perigeum.com/XCX-B-ST-Hig...category=22177
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Old 09-13-12, 10:09 PM   #5
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I just deflated the shock (hadn't thought of that before, thanks) and checked the clearance like you said. It actually fits ok and would keep the chain on, but it can't go as low as I want. I'm still going to return it and get the high-mount version.

I also need single ring bolts. There's a tab on the back that would bump into the long bolts+spacers. That's why the guide couldn't go any lower (regardless of linkage clearance). With single ring bolts and the high-mount guide, I should be able to get the guide where it needs to be without clearance issues.

Maybe I wasn't clear, but my issue is that I can't fix my chain line and use the guide at the same time. The chainring spacers do fix the chain line, but they put the ring closer to the frame than the guide can go. Moving the bb spacer would cause the same problem.

However, looking at it again, maybe the chain line isn't so bad. It's just biased more towards the small gear gears (it's straight at about gears 6-7 from the inside) and I'd rather it be more towards the bigger gears. Given that I'm in the middle most of the time, I'm not going to worry about it unless I start breaking chains.

thanks for you're help.
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Old 09-13-12, 10:21 PM   #6
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I just deflated the shock (hadn't thought of that before, thanks) and checked the clearance like you said. It actually fits ok and would keep the chain on, but it can't go as low as I want. I'm still going to return it and get the high-mount version.

I also need single ring bolts. There's a tab on the back that would bump into the long bolts+spacers. That's why the guide couldn't go any lower (regardless of linkage clearance). With single ring bolts and the high-mount guide, I should be able to get the guide where it needs to be without clearance issues.

Maybe I wasn't clear, but my issue is that I can't fix my chain line and use the guide at the same time. The chainring spacers do fix the chain line, but they put the ring closer to the frame than the guide can go. Moving the bb spacer would cause the same problem.

However, looking at it again, maybe the chain line isn't so bad. It's just biased more towards the small gear gears (it's straight at about gears 6-7 from the inside) and I'd rather it be more towards the bigger gears. Given that I'm in the middle most of the time, I'm not going to worry about it unless I start breaking chains.

thanks for you're help.

Gotcha, yeah, didn't realize it was a clearance problem with the ring/chainstay - just thought chainline and rubbing.

Single ring bolts and some super thin ring spacers may still help - get it moved in as much as your clearance will allow with whatever rubbing you can tolerate.
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Old 09-13-12, 11:16 PM   #7
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No issues with the chainstay, just the guide. There are no clearance problems running the ring spacers without the guide. The spacers fix the chain line. The issue is that the guide won't fit that corrected chain line because it (the guide) sticks out about 4-5mm too far. Even without spacers, it just barely fits.
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Old 09-14-12, 01:22 AM   #8
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No issues with the chainstay, just the guide. There are no clearance problems running the ring spacers without the guide. The spacers fix the chain line. The issue is that the guide won't fit that corrected chain line because it (the guide) sticks out about 4-5mm too far. Even without spacers, it just barely fits.
Ah! Got it now. I was apparantly having a massive brain fart while trying to picture things.

e.13 makes a cross specific XCX version, that has a tighter chainline than the mtb version - that may work. I'm running one of the new two ring XTR cranks, and had to use one of those.

No spacers with my press fit BB, ring without any spacers, guide spaced all the way out, and it's *perfect* so far.
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Old 09-14-12, 06:00 AM   #9
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That sounds like what I need. I'll look into it. Thanks again.
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Old 10-11-12, 08:53 PM   #10
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I finally got a new guide (also single-ring bolts). It's the same as the other one, except it's the high mount version.
The angle is off because the clamp is on the bend in the seat post. It can't go any lower, and any higher would make the angle worse. If they had something between the low clamp and high clamp, that would be perfect (as far as height anyway). It should do the job just fine though.

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