The Supreme S21 introduceS the Quickfill Ballast system which is a 1000lb hull-flooding ballast that fills the liner with water in under a minute. Optional Plug & Play ballast available for professional wakeboarding and wake surfing. Inspired by the S226 the S21 is a wake surfing machine. The largest boat in its class with is excessive freeboard for performance, safety and spacious seating you'll be shocked at how big this smaller boat is. A larger extreme pickle-fork design gives maximum seating and event exceeds the bow capacity of the larger S226!