Shimano 105 cranks and derailleurs, 11-28 & 50-39-30
Short of replacing the derailleur, can we go bigger than 28t on the cassette?
Is there a smaller chainring than the 30t for the 105 crank? It seems like I should be able to go to something like 46-36-26 or whatever the smallest chainring available would be.
We live 60 miles from the nearest bike shop and our transport is a 15mpg pickemup truck, so it isn't very convenient to pop over without having a good idea what I want to do when we get there.