For the Standard wakeboard, the brilliance is in the simplicity. The Standard is designed for advanced and expert riders and uses a smooth continuous rocker line with a relatively wide outline that provides massive boost. A subtle edge rail and center channel blended with adjustable easy-bite fins track naturally without locking you in. Pro Core: A super light-density, closed-cell polyurethane foam proven to withstand pro level abuse. Continuous Rocker: Smooth, fast, and predictable ride with soft landings. Hybrid Spine: A spine with a flat top that maintains an overall flat base surface for riding over features. Standard 139: Center Width: 17.5"Tip/Tail Width: 12.1"Rocker Height: 2.8"Weight Limit: For riders up to 160 lbs. Standard 143: Center Width: 17.6"Tip/Tail Width: 12.2"Rocker Height: 2.9"Weight Limit: For riders over 150 lbs. Subtle edge rail and center channel track easily Super light-density, closed-cell polyurethane core | Standard Wakeboard, Blank size 139