Wanted: 20T freewheel cog or bigger

Posted on Fri 27th, November 2009

• #1

twigdip

(this is both a Wanted: Cog request, and a technical question)

Hey,
I'm looking for a 20T freewheel cog or bigger (21T, 22T), but I think 20T would be the biggest cog I could fit on without changing the chain. At the moment I'm running a 52T on the front and 18T on the back; I want to put a 20T on the freewheel side of my back wheel to play polo (until I get another bike and change the front cog).

I think that a 22T is probably too big a difference from an 18T to be able to run both on the same chain? Does anyone know anything about this?

thanks
• #2

pifko

Depends on the length of your dropouts and where the axle currently sits...
• #3

twigdip

yeah., dropouts are not too long (it's a raleigh 501 frame),
but at least i have it close to the back at the moment...so I'm hoping a 20T should fit ok if the axle goes close to the front...

Depends on the length of your dropouts and where the axle currently sits...
• #4

pifko

Hmm, I don't know. My (horizontal dropouts) aren't long...2cm maybe and can only (safely handle a change of 1 tooth...
• #5

Khornight2

Firstly I should say I always look at the dropouts before buying a frame, but i flip my wheel between 14 and 19.

With the help of a half link I've never had a frame I couldn't get 4 teeth out of.

Photo or measure the drops and we could be more certain?

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