FOX Transfer Neo Factory Series Wireless Dropper Seatpost - 31.6 mm 125 mm Internal Routing Kashima CoatNeo is the fastest wireless communication protocol on the market Tested and proven by FOX Racing Applications Development (RAD) program, has multiple Enduro World Cup race wins Cable free means no frame routing headaches Factory Series has Kashima coated stanchion and titanium hardware Schrader valve for end user air pressure adjustment Patent pending low profile head design Best in class tire battery clearance, 30 hours run time on full charge