MATERIAL: One piece UD Carbon fiber
SADDLE CLAMP: Carbon clamp protect
                             Carbon rail
SPEC: Ø27.2 or Ø30.9 or Ø31.6mm
LENGTH: 350 or 400mm
OFFSET: 0mm
WEIGHT: 190g/pcs (Ø31.6x350mm)
OPTION: SPC-SL3-DI2 (with SHIMANO® seatpost battery collar)