what's so bad about replicas ? i mean do they cause problem in long term such as problem with imbalance and such 
I dont think there is a problem. I know many people who have run reps and not had any problems yet I also know of people with genuine ones having all sorts of problems with whiteworm etc. Having said that some can still be bad and have a poor finish etc.
I got some BBS LM reps on mine as a genuine set in 18'' was over £3000, no way was I paying that.
