Oversize External Butted Seat Tube in CrMo
Diameter = 31.8mm
Wall thickness = 0.9mm x 0.6mm x 1.2mm (external but side)
Length = 580mm
Butt 1/ Butt 2 = 110mm /110mm
TAKES A 30.4mm SEATPOST
Takes a 33mm COLLAR or BINDER BOLT (nov-500-b&b)