nice to see that deng thinks his bottom bracket will be as good (at least as pricy) as the top SKF model.. deng probably buys shite generic chinese bearings, while SKF actually make good ones. if he sold everything at half the price of what he does now, he would get away with products of questionable quality. but now that he prices his products as high as premium ones, i do hope he has made them properly, from proper materials to proper tolerances and after proper testing and dimensioning.