THE 50MM PEGS WILL NOT WORK. YOU CAN'T GET ENOUGH OF A CHANGE IN YOUR SHIFT LINKAGE TO WORK WITH THAT MUCH DROP. i HAVE THE 30MM AND THAT JUST MAKES IT. THEY ARE AT THE LOWEST SETTING. MY BIKE IS AN 07 I SEE YOURS IS AN EARLY BIKE. JUST MAKE SURE YOU HAVE ENOUGH CHANGEABILTY IN YOUR SHIFT...