from experience, when looking for light weight wheels. dont just look at how light they are but see if they are strong as well. If you want cost effective light weight.. the lenso's racin harts etc.. but they are not as tough. i.e if go through pothole.. well you know..
So branded or good quality lightweight wheels like volks, rays, 5zigen, regamaster, enkei etc etc are worth buying, but you also face security issues..
life's like that..