1)700C Road Racing Frames
2)Frame Size:440mm/480mm/520mm/550mmM/580mm
3)Weight:1050g
4)Wave:3k,6A,12A,or UD
5)Head Tube Size:ID 42mm,OD46mm
6)Seat Tube Size:ID:27.2 or 31.6MM 7)Offer OEM service