so what have you broken or feel is subpar. being serious.

the hubs are decent cartridge bearings, and unless your wheels are constantly going out of true, i don't you'll see any difference in a deep v set. the stock bars are chromo steel, unless you want a different bend, they will feel like steel nittos. same with seatpost, unless its creaking or slipping, what do you hope to gain? the headset and stock crank aren't the best, but typically dependable.