carbon mountain bike frame 1.size:16'',18'',20'' 2.disc only,postmount+V 3.weight:1140g 4.EN test,2 year warranty carbon mountain bike frame1.size:16'',18'',20''2.disc only,postmount+V3.weight:1140g4.EN test,2 year warranty4.3k,12k finish carbon mountain bike frame