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Small chain rings for 130mm BCD

Dfunk's picture
Submitted by Dfunk on Tue, 07/22/2008 - 23:09

Anybody know of any chainrings for 130mm BCD smaller than 38 teeth? I'd like to widen my gear range a bit. (Yay crosschaining your double to hell!) I think I've seen rings with tabs that reach out past the teeth to attach to a big crank spider. Anybody have any ideas where to get them? Right now I've got a 39 for my "little" ring and one tooth in the front doesn't seem worth a change. But a few more and I could be convinced.

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Teh Black Hole's picture

Hmm...

Submitted by Teh Black Hole on Tue, 07/22/2008 - 23:12.

I assume you don't want to go triple right?

Other than that, a compact crank may be the only answer.

These mystery rings sound like a possibility... if they exist (and if they can hold together).

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Submitted by paul h on Wed, 07/23/2008 - 09:49.

38 T = min 130 mm BCD unless you really want to shell out dough for a 37 T.

Also note that 34 T is the min for 110 mm BCD.

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also note that Paul is full

Submitted by Fat Panda on Sun, 07/27/2008 - 07:42.

also note that Paul is full of shit. If you were to fabricate an inverted chainring (teeth on the inside) and used a chain with no rollers or pins you would be able to run as small a gear combination as you like.

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