So I have an 07 Sirrus Sport. Came stock w/ a Shimano Sora rear derailleur and a Shimano (forget the model) front derailleur...
My question is.. What are my options in terms of aftermarket or better ones to replace on this bike? I'm guessing that the stock parts are somewhat bottom shelf. Any suggestions?
Also, what difference would I notice w/ upgraded derailleurs? Smoother, crisper shifting? Anything else? Would it also be a good idea to switch out the sprockets/cassettes/gears? I got the bike used for a great price and the previous owner said theres about 400 miles on it..
Thanks in advance.. Please school me.