Duotone Carbon Mast Aero SLS

The Duotone Mast Aero SLS is the carbon mast for riders who want their foil to feel tighter, cleaner and more connected under load. If you are pushing harder through turns, riding bigger front wings, or simply want a more direct feel than aluminium can usually offer, this is the point in the Duotone range where stiffness really starts to show its value on the water.

It sits as the standard high-performance carbon mast in the Duotone foil system. For many riders, this is the sweet spot between price, stiffness and all-round versatility. It gives you more direct feedback and better control than the alloy options, while avoiding the more specialist, low-drag race and top-end performance focus of the premium D/LAB mast options.

Where the Mast Aero SLS sits in the range

If you are choosing between Duotone mast options, this is how we would position the Mast Aero SLS:

• Choose the Mast AL 3BS if you want the most cost-effective option and value durability above all else.
• Choose the Mast Aero Mid QM SLS if you want faster, tool-free rigging and a cleaner beach setup with Quickmount convenience.
• Choose the Mast Aero SLS if your priority is maximum stiffness and direct response in a traditional plate-mount carbon mast.
• Choose the Mast Slim 2.0 D/LAB if you are chasing the lightest, most refined, lowest-drag top-end feel in the Duotone range.

For many UK wingfoilers, SUP foilers and prone foilers, the Mast Aero SLS is the sensible performance choice. It feels more planted and precise than aluminium, especially once speeds increase, wing spans get larger, or your riding becomes more aggressive.

Why choose the Duotone Mast Aero SLS?

• Extra-stiff carbon feel for more direct steering and cleaner feedback through the foil.
• Confidence with bigger wings thanks to strong torsional and bending stiffness under load.
• Proper all-round performance across wingfoiling, prone, SUP foiling, downwind and pump use.
• A strong upgrade from aluminium if you want your setup to feel less vague and more precise.
• Works across the modern Duotone 3BS ecosystem while also remaining compatible with selected Fanatic and Duotone carbon setups.

Which size should you choose?

• 75cm – best for tighter turning, smaller surf, easier handling, shallower water, and riders who want a more compact feel.
• 82cm – the best all-round size for many wingfoilers and crossover riders wanting one mast for varied UK conditions.
• 90cm – best if you want extra height, more clearance in chop, and a calmer feel once speeds and riding intensity increase.

Specifications

Product	Duotone Mast Aero SLS
Construction	Prepreg Carbon
Available lengths	75cm / 29.5", 82cm / 32.3", 90cm / 35.4"
Chord	135mm / 5.3"
Thickness (thinnest point)	18.2mm / 0.72"
Weight	75cm: 1.75kg / 3.86lb 82cm: 1.84kg / 4.06lb 90cm: TBC
Mast connection	3BS
Screws	3 x M8x50 TX45
Recommended torque	15Nm (M8)
Compatibility	D/LAB Wings + Tail / Aero AL 3BS / Fanatic & Duotone Carbon fuselages
Best for	Wing, prone, SUP foil, downwind, pump and selected windfoil crossover use

Package includes

• 1 x Duotone Mast Aero SLS
• 3 x M8x50 TX45 mast screws

Please note: fuselage, front wing, tail wing and board mounting hardware should be checked against your chosen setup. If you want help building a complete, compatible foil, just ask us.

Helpful reading & buying advice

• Duotone Foils Explained: how to choose wings, masts and fuselages
• Shop foils & foil components
• Explore Duotone wing & foil gear

Explore the range

• Duotone Mast AL 3BS – the robust, lower-cost entry into the Duotone foil mast range.
• Duotone Mast Aero Mid QM SLS – the carbon Quickmount option if convenience matters as much as performance.
• Duotone Mast Slim 2.0 D/LAB – the premium low-drag option for riders chasing the sharpest top-end feel.

If you are unsure which mast length or build direction makes most sense for your riding, get in touch with us at The SUP Company. We can help you build a foil setup that works properly as a system, not just as a basket of separate parts.

You can also arrange a demo or talk through your options with us at our test locations in Southampton and Lymington.

Who is the Duotone Mast Aero SLS best suited to?

It is best suited to riders who want a noticeable step up in stiffness and response over aluminium. If you are progressing, riding powered up, using bigger wings or simply want your foil to feel cleaner and more precise, this is a very strong choice.

Is the Mast Aero SLS worth upgrading to from the AL mast?

For many riders, yes. The biggest difference is feel. A carbon mast like the Aero SLS gives a more direct connection to the foil, especially in turns, during pumps and when you are loading the setup harder. It is less about marketing and more about making the foil feel tighter underneath you.

Should I choose the Mast Aero SLS or the Aero Mid QM SLS?

Choose the Mast Aero SLS if stiffness and a traditional fixed-plate setup are your priorities. Choose the Aero Mid QM SLS if you want quicker rigging, easier transport and the convenience of Duotone’s Quickmount system.

What size Mast Aero SLS should I choose?

As a rough guide, 75cm suits tighter turning and shallower or smaller-water use, 82cm is the safest all-round choice for many riders, and 90cm is better if you want more height, more clearance and more confidence in rougher or more powered conditions.

Is the Duotone Mast Aero SLS compatible with older Fanatic foil parts?

It is listed as compatible with Fanatic and Duotone carbon fuselages, alongside the Aero AL 3BS and D/LAB wing and tail ecosystem. If you already own older parts and want to be certain before ordering, send us your exact setup and we will check compatibility with you.