Subrosa bitchin mid bottom bracketbmx lifestyle brand subrosa promote bmx and good times around the world they do what they love and they love what they do lightweight 6061 alloy full cnc cones custom subrosa r12 mid bearings with logo and white seals available in 19mm and 22mm includes 2 sealed bearings internal spacer custom cone washers and extra alloy washers for perfect alignment weight 54oz for 22mm6 1oz for 19mm buy subrosa bitchin mid bottom bracket at chain reaction cycles