The sram roam 50 275in ust bike wheel offers fantastic levels of performance with everything that any serious mountain biker could require from their wheels it is sure that this light weight wheel are one of the best on the market today and it39s available in the ever growing in popularity wheel size of 275 for brilliant fun control and riding efficiency the roam 50 contains a brilliant design with super stiff rim spokes and hub design you are thrown into a riding style that is