from 12-30 to 12-23 chain length problem?
I'm currently running a 12-30t ultegra, planning to buy a 12-23t for fast flat group rides.
Will I need to remove few chain links everytime I change cassettes? What is the minimum cog size should I use if I would like to use a smaller cassettes without adjusting the chain length (12-25, 12-27, 11-28)? But I prefered 12-23t.
Thanks for your answer!