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Discussion Starter · #1 ·
So, I am replacing a bunch of parts on my Pug for this upcoming winter and I am adding a set of Mr Whirlys. I intend to get a set of MWOD rings to help with my BFL retrofit, but while I am waiting on them to become available, I am using a 36-20 combo. The problem is with the 20 tooth Vuelta chainring. It seems that the ears which the bolts go through are a little big and when I install the crankset, one or more of them actually rub on the outside of the bottom bracket. Before I take a file or Dremel and fix this problem, has anybody else seen this problem and am I doing anything obviously stupid? (besides spending all of my money on bikes?)
 

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20t! What are you climbing? Telephone poles?
I'd just compare it to a regular (22/24) ring, and if the only difference is the slightly bigger ears, go ahead and Dremel 'em.
 

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So, I am replacing a bunch of parts on my Pug for this upcoming winter and I am adding a set of Mr Whirlys. I intend to get a set of MWOD rings to help with my BFL retrofit, but while I am waiting on them to become available, I am using a 36-20 combo. The problem is with the 20 tooth Vuelta chainring. It seems that the ears which the bolts go through are a little big and when I install the crankset, one or more of them actually rub on the outside of the bottom bracket. Before I take a file or Dremel and fix this problem, has anybody else seen this problem and am I doing anything obviously stupid? (besides spending all of my money on bikes?)
I encountered the same thing. Filed them down and everything was fine. The stock ring is flat instead of rounded.
 

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There are any number of steel 20t rings available. They are inexpensive and will last much longer than that 20t alloy ring. They are all flat and will fit much better than that ring. That said, a file should make quick work of things.
 

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Discussion Starter · #6 ·
There are any number of steel 20t rings available. They are inexpensive and will last much longer than that 20t alloy ring. They are all flat and will fit much better than that ring. That said, a file should make quick work of things.
Yep, I know that there are plenty of steel rings out there, but I got a great price on the alloy and it only has to last until MWOD rings are available. Out comes the file!
 
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