I used to have knee problems (before i went fixed) but they improved a lot when i switched from SPDs to pedals which have free float, ie, no force tending to hold your foot in a particular direction. It means your foot and lower leg find their their natural most comfortable position.
apart from that, like everyone else is saying, use a low gear (say 73 in or less) and spin! you'll be quick off the mark, fly up hills, and if you can spin at 90-100rpm, still be faster than almost everyone else.
I used to have knee problems (before i went fixed) but they improved a lot when i switched from SPDs to pedals which have free float, ie, no force tending to hold your foot in a particular direction. It means your foot and lower leg find their their natural most comfortable position.
apart from that, like everyone else is saying, use a low gear (say 73 in or less) and spin! you'll be quick off the mark, fly up hills, and if you can spin at 90-100rpm, still be faster than almost everyone else.