So I posted a ton of pics of this bike in a post titled "txt". Because I am a moron and forgot to change the title. Look for it if you want to see 12 pics of the bike and parts. So here is a shorter one. If I buy the correct C-record rear derailleur and shifter will I be able to fix this travesty? Or did they peramanently screw the frame when they changed this over to 600 SIS?