Originally Posted by
cc700
but you know this so i can only assume you're starting the thread for discussion.
so i'll muse: isn't having faith in your equipment more important than differences between functional setups? a 9 speed chain will be functional and if it's tensioned there's no way it will come off. so isn't the thought that "oh it's made to stay on the cog" more of the issue?
I don't see why a road chain would be made to come off a cog any more easily than a ss/fixed gear.
I can think of two benefits to using a road chain:
(1) less noise with a bad chainline because a road chain is more flexible sideways*
(2) you can use high quality, lightweight chains like an KMC X-SL which would save ~200gram or ~2/5 pound.
example
*we're really taking about bushing vs bushingless chains here.