A male in his 50s was southbound on I-45 feeder south of Sawdust/Rayford and according to witnesses weaving in and out of traffic close to 6 pm Tuesday. Witnesses say they believe he hit the curb and then a post along the feeder which ripped him from the bike. The motorcycle continued down the feeder for at least 100 feet. The male who was wearing a full helmet and a vest with blue jeans was transported in critical condition to Memorial Hermann in The Woodlands.