Subject: RE: Training cassetteShouldn't make a bit of difference to someone who is "usually in the middle of the cassette." The 12-25 just starts its 2-tooth jump one gear sooner. Personally, I train and race on the 12-23 as there are no hills around here which would necessitate the 25 (or the 11, for that matter ). 12-23 ( 12,13,14,15,16,17,18,19,21,23 ) 12-25 ( 12,13,14,15,16,17,19,21,23,25 ) |