Question:

Does chain width matter when choosing a sprocket or chainwheel?

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I am planning on building a fixed gear bicycle from scratch. As I understand it, 1/8" inch chain should be used on a bicycle without a deraileur and 3/32" chain should be used if the bicycle does have one. But as I use only vintage parts when working on a bicycle, I don't think I could find a single cotterless chainwheel. Most singlechainwheels back then were made for cottered bottom brackets. What I want to know is, if the rear cog is designed for 1/8" chain, and the chain is 1/8", does it matter if the chainwheel was made for 3/32" chain?

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4 ANSWERS


  1. What's all this talk about cotter pins and such!  I rode and raced in the early 60s with a fixed bike, it had a single Stronglight Aluminium alloy chain ring and cotterless cranks.  My Son is using the said bike at the moment on his commute to work.  I think you could find a suitable chain ring, cranks and a bottom bracket on eBay under vintage parts.

    Would a track set up not be suitable in your situation?


  2. 1/8 chain will work fine with a 3/32 cw, but can you still get cotter pins? and watch out for contintental size cotter pins, smaller than UK.

  3. Yeah, you muts but matching gear cogs and chains. You can buy them in sets. I believe chimano make the best ones.

  4. sorry ive never been part of the chain gang i wouldnt know

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