XB4 Aero Towers

Sometimes things happen for a reason.

After working Psycho Nitro Blast and watching the racing all weekend, the gears started turning.

1/10th and 1/8th racing aren’t that different. The surface changes—but what we ask from the car doesn’t:

Unlimited grip.
More speed.
More steering.
Smoother cornering.
Better jumping.
Better landings.

We want everything—at once.

For years, we’ve studied how these cars actually behave. One thing kept showing up:

The car fights itself in the corner.

Brands—including us—have chased flex to fix it. But more flex brings its own problems: initial roll, inconsistency, and that snap at corner exit.

So we approached it differently.

Enter: Aero Towers

Designed per platform. Tested by racers. Built to push the limit—no matter your skill level.

The Front Tower

Go ahead—build a homemade wind tunnel. You’ll see it.

There’s almost no clean airflow reaching the cab or wing on most tower designs. The front tower acts like a wall.

The Aeel design changes that.

By opening up airflow:

• Air moves into the cab and toward the wing
• Downforce shifts from in front of the car to a more central position
• The car gains initial steering and stability

The result?
No more “floating” feeling—just planted, confident turn-in.

In the Air

It’s not about adding a front wing—it’s about controlling air.

Under rough landings, traditional towers can trap air, lifting the front and causing rollovers. Upper wings help—but add drag.

The Aero Tower eliminates that pocket:

• Air flows cleanly through the chassis
• The car settles faster on landing
• You get back on power sooner

What you feel:
More high-speed grip. Better corner entry. Easier consistency at pace.

The Rear Tower

Less about airflow—more about function.

This is where grip and rotation come together.

• Increased brake stability entering corners
• Faster rotation without rear-end loss
• More confidence in aggressive lines

You can push harder into 180s, trust the rear in 90s, and carry more speed through sweepers.

We recommend stepping up rear sway bar—your car can now support it.

Why it Works

Traditional layouts create interference:
The outside shock influences the inside, creating binding and inconsistency.

With the split design:

• Each side works independently
• Tires stay planted
• Rotation becomes smoother and more predictable

The car stops fighting itself.

Design Details

• Each tower designed to the needs of the car.
• Only lower bridge when needed = less weight, more airflow.
• Similar strength to normal style towers.
• Independent flex sides reduce crack propagation

Optional lightweight guards are available:

• Chamfered for a clean look
• Available for front or rear
• Compatible with upright or flipped shock setups

Testing & Availability

Proven on:

• Office carpet
• Black carpet

Clay testing is coming soon.

No major setup changes required—we offer multiple tower heights so you can fine-tune to your program.

Available (or coming soon) for:

• B7
• B84
• 22X
• 22X-4 2.0
• XB2
• XB4
• SO 3.0
• MO 3.0
• LD3
• PB
• MSB1

Follow our Facebook page for updates.

XB4 Specific Options

 An Extra Set of Inner Ballstuds (-4mm) on both Front and Rear Towers for more adjustability on any surface. Also we added a 4th Inner Hole to the rear tower. This can help smooth the car out on extremely high grip tracks.

 On the towers that would be used for clay (-3mm and -5mm) we added an extra set of wing mount holes that mount the wing higher for more aggressive downforce options as well as perfect for outdoor tracks and the Outdoor National Series!

 This also has the ability to use our Xray Titanium Shock Cap and Rod End Mounting System. This pops onto the plastic shock cap (either standard or -1) or the bottom rod end to mount the shock in a way that makes the car significantly more free. This also has the benefit of allowing to use a much smaller front tower guard on carpet due to no longer needing a front mounting nut. Removing 9-12g from the upper front of your buggy.

XB4 Options (‘26 Geometry)

Front Height

-2 (Clay)

-4 (Mod Carpet)

-6 (Stock Carpet )

Rear Height

-3 (Clay)

-5 (Mod Carpet)

-7 (Stock Carpet)