Hot Sails Maui - Windsurf sail

The ULTRA is a no-compromise slight flex top mast from the initial concept right through to the final product, no expense has been spared. Quite simply we set out to make the highest performance mast on the market. When we say highest performance, we mean strong enough for all kinds of extreme sailing.

All fibers in the ULTRA are carbon, including the boom re-enforcement.

Our mast is pure, nothing added just carbon. We were determined to produce a premium quality mast, not necessarily the very lightest which would surpass all others in terms of strength. We don't want you swimming home.

Throughout the development phase we tested countless masts from five different carbon factories to destruction in the brutal Hawaii waves. We constantly re-evaluated the performance and characteristics to ensure that the new mast perfectly complimented our full range of sails.

The new ULTRA RDM mast is lighter, reacts quicker and will take a respectable beating. Made under tight controls by a European company with British sourced Prepreg carbon the ULTRA 100% carbon mast is the performance boost you were looking for and your rig will never quite feel the same again!

Hot Rod Ultra 100% Carbon Features

  • RDM
  • 100% Prepreg carbon construction
  • Inter-changeable top and bottoms allow multiple options
  • Interchangeable with Kauli 90% & Monster 65% mast sections
  • Genuine Sailmaker's leather trimmed mast bag


Size Length(Feet) Stifness(MCS) Stifness(IMCS) Weight (LB) Weight (KG)
340 11'2" 24 13 2.73 1.24
370 12'2" 25 16 2.95 1.34
400 13'2" 26 19 3.19 1.45
430 14'1" 27 23 3.63 1.65
460 15'1" 26 26 4.38 1.99
490 16'1" 25 28 4.93 2.24