Satori Sorata Pro Height Adjustable Dropper SeatPost Internal Cable 31.6 Diameter 150mm TravelSatori Sorata Pro Internal Cable 31. 6 Diameter 150m Travel 460mm Total Length SPEC: FORGED AL6061 Compatible with frames with internal dropper seat post cable routing (check bike for suitable design.) Choose either Internal or External routed standard cable Suitable for seat post diameters of 31. 6 mm (check bike before purchase.) Cradle: 43 x 42 Angle: 5~+18 Offset: 3mm Weight: 635g = 1. 4lbs SATORI has been a leading supplier to the bicycle