Thinking of trying some racing.
Have 50/34 chainrings on Tarmac.
Live in hilly area, eg 127 mile ride/race upcoming has cat1 2500 ft climb at very end of ride over 5 miles (1700 ft over last 3 miles) Total >13k climbing.
Have been happy w/ 12-25 cassette so far with shorter climbs.
Spin out occasionally on 50/12, but only on steepest downhills.
Need to work on my cornering, descending technique. At this point, to hang with people faster than myself, see this as more important than 12 vs 11.
My question is, to start Cat 5 racing, do I need a 50/11?
Thanks for your help.