AIRHEAD BONEHEAD IITM Wakeboard. BONEHEAD II is 124cm long, perfect for youth riders up to 130 lbs.. It is a lightweight twin tip free-ride wakeboard designed to help youth riders of all levels improve their skills. The continuous rocker is fast and forgiving with smooth pop. Performance and durability are packed into this price point board. The RIM core has a PBT top with sublimated graphics. Two removable fiberglass reinforced nylon fins provide excellent tracking and carving. Kids love the skull graphics!