Foil Drive Max+ vs. Fusion: How to choose based on budget, power, and run time

Buy the Max+ if you weigh under about 200 lb, want the lightest setup, or would rather keep $1,200 for the rest of your build. Buy the Fusion if you’re over 200 lb, a first-timer who needs every advantage getting up on foil, or you want the longest sessions Foil Drive makes.

Everything else in the two base kits is shared, so this is the one decision that’s hard to undo.

Chris Trappy at Fin & Foil in Fort Pierce works through the same four questions with every buyer, in this order: budget, power, run time, thrust.

This post follows that order, with the numbers behind each answer and the setups the shop actually puts riders on. For the wider picture, from boards to cables, start with the Foil Drive buyer’s guide.

How much more does the Foil Drive Fusion cost than the Max+?

About $1,200 more for the base kit. That’s the first filter Chris applies, before he talks about anything else. If that money would stretch you, he won’t push you toward the Fusion, because the Max+ handles most riders under 200 lb without trouble.

The money you save is better spent on the parts that make or break a first season. The props and cable you start on matter more for a beginner than the extra thrust, and so does a board big enough to learn on. Most online packages charge extra to swap the standard black props or 20 cm cable, which is why the Foil Drive package builder lets you pick those up front.

One hidden cost to know about: Fusions bought before Sept 23, 2026 need a separate battery adapter to run the smaller 650 battery. New Fusion base kits include it.

Is the Foil Drive Fusion more powerful than the Max+?

Yes, but by less than most people expect. Foil Drive rates the Fusion at 37.5 kg (83 lb) of maximum thrust and the Max+ at 35.5 kg (78 lb). The Fusion’s sustained power is 1,850 W against the Max+’s 1,750 W.

Where that difference shows up is takeoff. Getting the board out of the water is the hardest work the motor does, and it’s where heavier riders and first-timers feel the gap. That’s why Chris nudges a first-time rider over 200 lb toward the Fusion: they need the extra power and the extra run time to get a good first experience.

For a lighter rider, the gap is easy to miss. The Max+ already makes about 20% more thrust than the Assist Max it replaced, so a fit rider under 200 lb isn’t short on power. Chris describes the Max+ as “a little more like all-around, a little more performance-based,” and for that rider, the lighter box is the bigger advantage.

Foil Drive Max+ and Fusion run time on every battery

Between about 35 minutes and an hour and a half, depending on the battery and how you ride. Chris calls range “the age-old foil drive question,” because the honest answer is that it depends on how much of the session you spend under throttle.

Here’s every current combination, using Foil Drive’s indicative figures for an 85 kg (about 187 lb) intermediate rider:

Only the Fusion takes the 860, so it’s the only way to get the longest sessions. The trade is weight. Chris says the smaller batteries feel “a little more like a natural like you didn’t have a foil drive unit on there,” which matters most if you want to pump and surf rather than cruise.

Beginners should expect less than the chart. Every fall means another takeoff under full power, and that’s where most of the battery goes. It’s also why the shop suggests most new riders plan on a second battery.

Is a Fusion with a 650 battery the same as a Max+?

Almost, and that’s the most useful thing to know about this year’s lineup. With the same 650 battery, both run for about the same time.

The Fusion still makes its full 37.5 kg of thrust, while the Max+ makes 35.5 kg. The Fusion setup is slightly heavier (15.7 lb against 14.8 lb) and longer, because the Fusion box itself is bigger.

That gives a Fusion owner two setups in one: the 860 for long sessions, and the 650 for a lighter, livelier board. Chris says this is what changes the Fusion’s appeal: “now with these new batteries that are coming out, it’s going to be a lot more attractive offering to people because you’re able to shed the weight by getting on those smaller batteries.”

It doesn’t work the other way. A Max+ can’t take the 860, so it can never match the Fusion’s longest run time. If you think you’ll want long powered sessions later, that’s an argument for buying the Fusion now.

Which Foil Drive to buy by weight and skill: 4 starting builds

These are the starting builds the shop reaches for most often. Each one assumes a retrofit motor on a mast you already own. The full persona builds are coming as their own posts.

First-time rider over 200 lb

Fusion, 860 battery, three-blade hub, blue props, and a 25 cm cable, or 30 cm for an easier first height. This is the rider Chris steers to the Fusion every time. They get the most thrust off the start, the longest battery, and the low-range blue props that get a heavier rider up fastest. The cable is 5 cm longer than a Max+ rider would order, because the Fusion box is longer and the same cable would otherwise sit too high.

Lighter, athletic beginner

Max+, 650 battery, three-blade hub, black props, and a 20 cm cable, or 25 cm to learn. When an athletic 129 lb rider asked Chris for a setup on a recent call, he went straight to black props. This rider doesn’t need the Fusion’s extra thrust, and the lighter box will suit them better once they start pumping.

Surfer with a long paddle-out

Fusion, 860 battery. Chris is specific that this is about distance to the break, not wave size: if your waves are close, you don’t need to burn the battery getting there. If your break is a mile out, the Fusion keeps you out there longer. Chris notes that gray props, the top-speed option, suit long runs and fast swell, but that kind of swell is rare on the Treasure Coast. Black is the safer default here.

Experienced foiler who wants the lightest feel

Max+, with the 430 sport battery once it ships. A competent rider under 200 lb who mostly needs help getting up and then pumps or surfs gets the most natural feel from the lightest install. Riders over 200 lb in this group are the exception: Chris puts bigger, competent foilers on the Fusion too.

Can you switch from a Max+ to a Fusion later?

Yes, and more cheaply than you’d think. The motor, props, cable and mini pod are shared, so moving up means buying the other base kit, not a new system. The 650 battery carries over too, as long as you have the adapter for the Fusion. One caution on cables: if you move a 20 cm cable from a Max+ to a Fusion, the motor will sit about 5 cm higher.

What doesn’t carry over is anything from the older 40V Assist Max. Its batteries and chargers won’t work in either the Max+ or the Fusion, which run on 43V.

Max+ vs. Fusion FAQ

Is the Foil Drive Fusion too heavy for a beginner?

Not for the beginners it’s meant for. The 860 setup weighs about 3 lb more than a Max+ with a 650. A first-timer over 200 lb gains more from the extra thrust and run time than they lose to the weight. A light, athletic beginner is the one who’ll notice the weight, which is why Chris usually puts that rider on the Max+.

Do the Max+ and Fusion use the same motor?

Yes. Both run the High Power V2 motor, with the same hubs, props and cables. The only part that differs between the two base kits is the electronics box, which is why the battery choice comes straight after it.

What if I still can’t decide?

Ride one. A Foil Drive lesson in Fort Pierce puts you on the shop’s gear, and an hour on the water answers more than any table. If you’re still split after that, call Chris or Brian with your weight, where you ride and what you want to do. They’ll tell you which box to buy, even when it’s the cheaper one.