Originally Posted by late
After about 3 shifts the chain has to twist and that twisting is called cross chaining.
Originally Posted by Digital Gee
I thought cross chaining was having the chain on the outside ring up front and the inside ring in back, or vice versa.
I guess it depends upon the adjustment of the bike.
No way would I call shifting up or down 3 cogs cross chaining.
Given the example above, a 27 speed bike would only have about 15 chain ring/cog combos.
I certainly don't follow that rule. I tend to judge by the sound of the drive train.