i currently have a ultegra 12-25 cassette on my bike...I have the 9sp ultegra with a compact r600 crank (50-34). What is the model number of a sram cassette i can use that has the 11-26? Also what is the teeth combos for the sram cassette?
my ultegra is...
12-13-14-15-17-19-21-23-25
my ultegra is...
12-13-14-15-17-19-21-23-25