Hey guys,

I'm new to biking and I bought an 07 KHS Flite 220 for $400. And I am glad I got it, but I can already tell that I have issues with certain components of the bike. (Please bear with me, as I don't know the proper names/terminology for the parts)

I use my bike primarily for commuting and leisure (no racing or anything). But is there a way to replace components like derailleurs and the gears (?) or is it better to just get a new bike?

I noticed at the fastest gear, I tend to get a skipping feeling where it seems the chain doesn't catch. And though it's a minor inconvenience (for now), I don't know if it's damaging, and I once fell off the bike while pedaling while standing. Also I can't bike in that gear in the rain because it becomes more frequent.

Any suggestions for parts or bikes that could replace?

Thanks!