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Old 12-22-05, 05:12 PM   #1
mattface
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My new chainring doesn't wanna go on

I just got a new Salsa 135 bcd chainring, and it jsut doesn't seem to wanna go on my Campy Athena crank. It's too small. the difference is less than 1mm, but it's just a wee too tight.

What do I do. IS there a trick to wedging it down, or should I sand the edges of the ring slightly where they meet the spider?
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Old 12-22-05, 05:36 PM   #2
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It sounds as though Salsa's idea of 135mm does not match Campag.'s. I would simply sand-to-fit and enjoy the ride, but then I have elongated mounting holes to make a 130mm ring fit onto a 128mm Nervar Star spider.
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Old 12-22-05, 05:57 PM   #3
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Yeah, sand or grind a bit off. As long as the holes of the chainrings line up with the holes in the crank, you'll be fine.
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Old 12-22-05, 06:28 PM   #4
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yeah, so here's what I did. I bolted the new chainring to the old one. The holes line up perfectly, but there is a tiny bit of overhang on the new one. I think I'll sand it down with them both still bolted together
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Old 12-22-05, 08:07 PM   #5
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Originally Posted by mattface
yeah, so here's what I did. I bolted the new chainring to the old one. The holes line up perfectly, but there is a tiny bit of overhang on the new one. I think I'll sand it down with them both still bolted together
That sounds like a good plan. If you've got a friend that has a dremel tool see if you can mooch that for the job. Might make it a bit easier.

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Old 12-22-05, 08:19 PM   #6
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I wound up using a die grinder. It took a lot longer than I expected. It was such a miniscule difference, but I didn't want to go too far, so I took off a tiny bit, tried it, took off a tiny bit more. on the last round I put black marker on 3 of the 5 surfaces, ground off the ink, and then it fit perfect.
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Old 12-22-05, 08:43 PM   #7
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Glad it worked good for you. I'm always hyper-cautious doing things like that, since once it's off, there is no putting it back on again.

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Old 12-22-05, 11:52 PM   #8
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If you are tightening down the bolts as you put them on, stop. What I typically run into is that if you put on one bolt, get maybe one or two turns in, then put a bolt on the opposing side, leave it very loose again, and keep repeating this pattern that once the chainring bolts are all in place, the chainring slides on. Otherwise, I typically run into the problem you describe. I then tighten in a cross pattern. Worked for me on quite a few different crank/chainring combos.
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Old 12-23-05, 12:17 AM   #9
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Yeah, I couldn't even get the bolts on. the ring just wouldn't fit. when I was done the fit was TIGHT, I slid the ring into position, put the bolts in and tightened them in a cross pattern. I'm not terribly impressed with Salsa's tolerances.
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Old 12-26-05, 12:57 AM   #10
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We've seen the same thing in the shop with Salsa's chainrings on campy cranks.
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Old 12-27-05, 10:25 PM   #11
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We've seen the same thing in the shop with Salsa's chainrings on campy cranks.
I wonder what that's about? 135 BCD IS Campy. So few other cranks use 135 I assumed the Salsa 135 rings were made for Campy. How do you usually deal with em? File em down like I did, or send em back?
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Old 10-16-06, 05:01 PM   #12
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hi matt, how did things turn out? should i buy these rings? for a campy system?
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