I know very little about bikes, but I'm learning. I have this bike (with new petals, saddle, all that but that's besides the point) but the one thing I know NOTHING about is chain rings. I want a higher ratio so I want a new chain ring, but what is compatible with my bike? It says it has a 110 BCD (whatever that is) and it's 5 bolt, so if I was to buy say this chain ring would it work? what tools would I need to change the rings? thanks!