I'm about the same height as you and about 160lbs. Depending on your boot size I would get a 153 or 155 actually. Based on ONLY my weight and type of riding, the 155 would've been a better choice but I have pretty small feet (size 7 boots) and opted for the 153cm due to the narrower waist width (24.4 vs. 25.1 cm). The 158 board is even wider. You'll need a narrow board if you want to properly twist the board for better turning. Nothing sucks worse than having a board you can't turn on because it's too wide.