Originally Posted by
ThunderChunky
42x16 works well for me with most of the hills i have to ride in sf. but i love going fast, so in that situation it's kind of a bummer...
I've got hills to deal with too so I stayed with the 42 x 17 on the SJ for a while. Now I'm pushing 42 x 15 (73.6gi)and getting up some really steep stuff, albeit slowly. I do a long climb and switch to freewheel for the descent. It's 42 x 18 and on the flats it's really slow. I'm going to swap the 18 for a 15 or 16.
So anywhere between a 42 x 17 and 42 x 15 is for me.