Shimano Ultegra 11-28 to a 12-30 how much of a difference will it make?
My new bike has ultegra 11-28 cassette, I had heard all along that I would not miss my tripple front chain rings that i had on my old bike as the double compact would hit the same area's in general. I had a 26 tooth cassette on the old bike & it was good enough for me on hills as I have done the Hilly Hundred twice with it & made it up all those hills each time without walking.
Well today I attempted one of my hill climbing interval sessions on the new bike & I completed the task but it left me knowing I'm in need of another higher gear or two as it was way more tough on me to pull it off this time, in fact i was not sure I was going to be able to make the 10 climbs but I mashed it out & completed them.
My question is: how much of a difference am I'm going to feel switching out the rear cassette for the new 12-30 vs the 11-28... what are the pro's & con's. I like to do hill repeats but on this steeper longer one that I sometimes visit, I remain seated most all of the time as it's around a half mile to the top & remember I'm not a light weight person, (I'm a lower level clydesdale on a good day, so i sit & spin to save energy most off the time) with the 11-28 I'm in the easiest gear practically all the way up & my cadence ends up not being where i would like it to be & it's feeling to hard, I feel i need atleast 1-2 more easier gears than the 11-28 gives me so i can settle in & spin it out to the top.