I'm new to cycling, I'm planning on buying my first bike next month. After about two months of reading through all the bikes in my price range I've decided on the Wilier Izoard xp with sram force from competitive cyclist 2,400. My question is: should I be putting my money into a better group (i.e) force over rival, or should I be upgrading thing like wheels, bars, saddle, seat post etc. From everything I've read this is a great bike, but is it a good starter bike? Thanx for any advice you may have.