Choosing the right mast can make all the difference in your ride. At F4 Foils, our GP plate masts come in two precision-engineered versions — the 13.x mm GP RC (Rider Control) and the 11.x mm GP AX (Apex Performance). The AX masts are built for maximum speed and responsiveness, making them the perfect choice for smaller foils such as the Orca series 800 and below. For larger foils (800 sq cm and up), the broader surface area and greater wingspan naturally generate more load on the mast — an area where the RC shines. Its stiffer, more stable construction ensures exceptional control and confidence under higher forces.
As a general guideline — and for warranty compliance — it’s essential to match both rider weight and foil size when selecting your mast:
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Riders up to 190 lbs using smaller, performance-oriented foils (< 800 sq cm) will get the best results from the lightweight precision of the AX line.
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Riders over 190 lbs or using larger foils (≥ 800 sq cm) should choose the RC mast for optimal strength, stability, and long-term durability.
Following these combined recommendations ensures you get the ideal balance of performance, safety, and full F4 warranty protection — so you can focus on riding your best.
