I'm a bit of noob (both to the forum and to road cycling) so go easy on me.
I ride a 2010 Giant Defy 3 as my general road, also now my part time commuting bike and am doing my first sportive next month.
I'm thinking about upgrading my wheelset. Am I going to experience much difference at all over my stock Giant wheels by upgrading to Mavic Askiums? Or if I can scrape the money together is it worth me going for something like the Ksyriums? Obviously I'd notice more with the more expensive Ksyriums but money is very tight, so will I notice a positive difference with Askiums or not really?