Originally Posted by
Rahzel
How many links should I remove from my chain when I go from the 11-34 to the 12-26? (I know I'm supposed to replace the chain when I replace the cassette, but the chain shows zero stretch, so I'm going to see if I can get away with not replacing the chain at this time.)
I would consider not removing any. The new smallest combination is now 1 tooth larger, than with the old cassette. Thus the derailleur will able to wrap the chain just fine.
The upside to not resizing the chain is that you can always put the old cassette back on anytime you want, like when you go do Six Gap.