Originally Posted by
alcjphil
If you are using friction shifting, you can use a narrower chain than is optimum for the number of cogs on your rear wheel. So you might get away with a 10 speed chain on an 8 speed cassette and possibly avoid chain rub. However, you might then have to deal with replacing your chain more often. It is all about tradeoffs....
Yes, thanks for this. I actually tried a narrower chain some time back for different reasons, but it caused the chain to sometimes ride between front chaninrings.