The 4’4” 21L Grubb Pro Wake/Tow Board is the “big brother” of the 4’0” 18L: the same compact, high-performance character, but with a bit more length, width, and volume for added stability. Ideal for larger/heavier riders, or anyone who wants a slightly more relaxed and easier board—without giving up performance.
The shape stays compact and playful, but the extra surface area and 21L volume make take-offs easier and add control as you build your skills or simply want a smoother ride. Built for wake and tow, and still fully “Grubb-approved”: tight, fast, and made to rip.
Details
More stability: 21L for smooth, confident starts
High-performance shape: slightly larger, but still built to go hard
Versatile: ideal for wake and tow
Signature Series: designed by and for Brian GrubbSpecs
Dimensions: 4’4” x 20.8” x 1.8”
Volume: 21L
Strap inserts: Yes (Surf layout)
Colors: Cloudbreak Blue / Jet Black / Off-WhiteRecommendation
Choose the 4’4” 21L if you want the Grubb Pro feel with a bit more stability and ease than the 4’0” 18L—perfect for larger riders, faster progression, and a smoother ride on take-offs and landings. If you want the most compact and “snappy” board feel and need less stability, the 4’0” 18L generally fits better.
Recommended configuration (Front Wing + Back Wing + Mast)
Mast: 32" all-around; 28" for shallow water or extra maneuverability.
Front Wing: Havoc 105/121 for control; HA(X)/Florence for more efficiency and glide.
Back Wing: Flow Back Wing 31 for stability; Flow Back Wing 26 for more pivot.
