Originally Posted by
cyclezen
The 16 tooth spread No-No came about back in the day of 8 & 9 spd... Because of chain width, the ring sizes were much more critical. IF you had a large ring and a small ring spread greater than 16 teeth, going to the 2nd smallest cog, while on the small ring, could often cause the chain to rub on the inside of the big ring...
So would my only potential problem be the chain rubbing on the inside of the ring on changes? Is that likely to cause something to catch and cause an accident or just be a bit of extra wear/friction when trying to change?
In the same vane, if I fit it and I can change back and forth without anything colliding when on a repair stand, then I'm good to go?