Originally Posted by YATES
Most of my problems occur when:
a. I'm in a really small cog on the rear cassette, then attempt to shift from small ring to big ring.
b. i'm in my biggest cog on the rear cassette, then attempt to shift down, from the big ring to the small ring. (my chain slipped off on a 22% grade yesterday and i literally had to walk my bike up the rest of the hill because i couldn't get any momentum after i put my chain back on! all because of this!)
quit trying to cross chain, it isn't designed for that
big cog, big chainring is a no-no
small cog, small chainring is a no-no
many shifting systems wont even do big ring big cog without lots of chain noise and complaining, todays cassettes are wider than what the chain will allow at the extreme ranges of gear combos