Alright. So I've got a Motiv CA-480, I'm living on a college student budget and don't want to spring for an entire new bike just for trigger shifters and rear suspension. I can live without the rear suspension for now but I HATE MY GRIP SHIFTERS. I can get a 21-speed set of Shimano trigger shifters from Amazon for $30. How hard would it be to install them? Is it as simple as "disconnect old, connect new, adjust cable at derailers?"
I'm also possibly looking at a rear disk brake adapter setup (and maybe a new front fork). Although I'm debating how much modification to do before I end up spending enough to have gotten a better bike...
So if anyone could shed some light, that would be most appreciated.
Oh and here's a pic of my ride. Not the best, but got it for free, so I can't complain.