Originally Posted by
john winn
I was wondering if i got a cheaper bike, is it possible to upgrade the components one at a time? For example if i Got a treck 1.2 road bike, could i upgrade the derailleurs to 105's and keep the shifters until i can afford 105 shifters? would i just have to buy a whole set at the same time?
To answer directly yes you can buy a 105 derailleur with Sora Shifters. You just can't use SRAM or Campy. However if you get 105 shifters you will also have to get a different cassette because the new 105s are 10 speed not 9.