Size : S (50CM) | M (53CM) | L (56CM) Tube : 6061-T6 Triple Butted Aluminium TubingFrame Weight : 1500g (53cm) Bottom Bracket Threading : BSA BB 68mm (English) Seatpost Diameter : Ø 31,6 mmHead Set : Alloy Integrated 1-1/8" Head Set Ø 41,8 mm