Originally Posted by
Amt0571
On my 3x bike I replaced cables twice and adjusted the FD three or four times in 30000km, had few issues with chain drop, and I can manage cross chaining by myself.
You don't have to deal with that on a 1x bike.
Crosschaining, BTW does exist in 1x: It's the reason the chain falls from the big cogs when backpedalling, and it causes accelerated chain wear. The thing is you simply can't avoid it.
First off...Why are you back pedaling?
Secondly...On a 1x system, if the chain ring was located in either of the positions of the large or small ring on a 2x or 3x drive train (to either side of the nominal chain-line), then yes the chain would be cross chained when on either the largest or smallest rear sprocket.
However, on a 1x system the chain ring is positioned at the nominal chain line position so it more closely lines up with the center of the cassette...Just like the middle ring on a 3x system. This obviously reduces the lateral angle of the chain when on the largest or smallest rear sprocket compared to the classic cross-chained state of a 2x or 3x system.