Originally Posted by Black Shuck
1: If you want to use indexed road shifters you'll probably need to use a roadie front derailleur, people keep recommending the Tiagra triple. Rear derailleurs have the same cable pull for mtb and road, so you can use wichever one you like, but mtb RDs handle bigger cassettes.
2: Yes.
So it is generally possible to use MTB deraileurs on my cyclocross frame with a road triple crankset and cassettes? That is if I use MTB gear shifters.
I am able to acquire second hand ones cheaper, so my preference is for MTB deraileurs.
I guess my main issue is confusion over compatibility between the road and MTB parts.