The wheels are just micro stock looking things with a full metal core. and Micro have a tendancy to dehub(after a looooong while)... I snapped my last micro brake, but that's just me... my current one is brilliant.
And it's about 2-3kg heavier than a stock pro-model, but considering it's re-inforced and junk already the weight difference isn't that vast. And it's pisseasy to get used to riding with a little extra weight.
I love the things.