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www.thegardenjumps.com
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Discussion Starter · #1 ·
I just bought a new frame and built it up, setup was no problem as I have done it all before. I put the rear derailleur on and started adjusting it, that is when I ran into a problem.

In the smallest cog on my cassette I could tell the chain was hitting something. I checked the limiter screws to make sure they were set correctly and they were then I saw that the derailleur bolt was sticking all the way through the hanger and rubbing on the chain. It is sticking out 2 or 3mm

I adjusted the tensioning bolt and I could almost get the chain to miss the bolt but it keeps rubbing. The way I see it, I can either put a washer on the outside of the hanger and readjust everything. Or I can grind the bolt down. I see some pros and cons with each of these options.

I know which way I'm leaning but I figure it's best to get a few peoples input before I start something.

What do you all think my best choice would be?

The bike is a .243 (killer deal at Jensonusa last week) and the derailleur is a X-9 short cage

- Jon
 

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Old man on a bike
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12,395 Posts
If you're sure a washer stack or a spacer will work, that'd be simpler and since you obviously have enough threads, not an issue otherwise.
 

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Stay thirsty my friends
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885 Posts
I don't know what kind of rims you are using but if the axle isn't centered it can cause the type of problem you describe, basically if the hub isn't centered in the frame it may be too close to the drive side and cause clearance issues.

Check before you grind.
 

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Old man on a bike
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12,395 Posts
4JawChuck said:
I don't know what kind of rims you are using but if the axle isn't centered it can cause the type of problem you describe, basically if the hub isn't centered in the frame it may be too close to the drive side and cause clearance issues.

Check before you grind.
Kind of rims wouldn't mean a thing...axle spacing might, though.
 

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Stay thirsty my friends
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885 Posts
Typo, hubs are what I meant. If they are adjustable is the issue.
 

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Assuming you have enough adjustment in the limit screws and the B-tension screw will still line up with the hanger tab, just add a washer. If the B screw looks like it will slip off of the hanger tab you can possibly reverse the screw so that the head rests on the tab rather than the threaded end.
 
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