noob with a quick question

[peterham]

Hi guys,

I'm new to the forum and i have a quick question to ask.

I have an old Concept Colorado Mountain Bike 21 speed Shimano, with Quickfore Shifters. I have recently picked up another bike but i dont like using the twist shift handles. How hard would it be to swap the shifters and the full gear system from my old bike to the new bike? or is this just me being stupid?

Thanks in advance