MATERIAL: BODY: AL6061-T6
                    TUBE: UD Carbon
SADDLE CLAMP: Carbon clamp
                             Protect Carbon rail
SPEC: Ø27.2 or Ø30.9 or Ø31.6mm
LENGTH: 300 or 350 or 400mm
OFFSET: 20mm
WEIGHT: 235g/pcs (Ø31.6x350mm)
OPTION: SPC-11-DI2 (with SHIMANO® seatpost battery collar)