Developing Bad Ass: How We Reinvented the Fiberglass Semi Fender

At Bad Ass Custom Truck Parts, we don’t just sell gear — we solve real-world, road-tested problems. If you’ve ever replaced a cheap fiberglass fender after just a few thousand miles, you already know why we exist.

From balsa-core blowouts to cracked gel coat panels, we saw one failure after another. These weren’t flukes — they were the result of a weak industry standard. That might work for mass-produced, disposable fenders, but not for the men and women who run hard, haul heavy, and represent the backbone of American freight.

So we did what needed to be done:
We built something better.
Something stronger.
Something Bad Ass.

🔧 Introducing the ArmorCore Revolution

We didn’t just want to build another fiberglass semi fender — we set out to redefine what strength looks like in the world of custom truck parts.

With help from engineers, fabricators, and truckers who know what the job demands, we developed ArmorCore — our proprietary inner structure that makes every Bad Ass fender a whole different animal.

What is ArmorCore?

ArmorCore is a next-generation core system engineered specifically for the rigors of heavy-duty trucking. Unlike hollow-core or balsa-filled designs, ArmorCore was made to take abuse — and come back for more.

ArmorCore Benefits:

• Resists cracking, warping, delamination, and fatigue

• Withstands extreme temperatures and road impact

• Outperforms traditional balsa-core fenders by miles

• Delivers rigid strength without excess weight

This isn’t something you’ll find in a truck stop catalog. It’s custom-built for drivers who live on the road and don’t have time to mess with weak parts.

🚛 Tested in the Real World — Not Just the Shop

We put our ArmorCore fiberglass fenders through some of the harshest trucking conditions in North America:

• Heavy-haul freight with constant pressure and road stress

• Cross-country runs with extreme flex, vibration, and impact

• Midwestern winters and asphalt-melting summers

• Repeated install/removal cycles for service testing

The result? No warping. No cracking. No failures.
Just clean lines and serious strength — mile after mile.

🛠️ Why We Built It

Because truckers don’t need gimmicks — they need gear that holds up.

We knew if it was going to carry the Bad Ass name, it couldn’t be “good enough.” It had to:

• Last longer than any other fiberglass fender on the market

• Take more abuse without backing down

• Look cleaner with fewer flaws, tighter lines, and a pro finish

• Feel tougher, inside and out

We designed every inch of it to live up to the mission:
No weak parts. No B.S. Just real strength.

⚙️ The Bad Ass Standard

We’re not here to blend in. We’re here to set a new standard in fiberglass truck fenders — one that respects your time, your money, and your reputation.

Every Bad Ass Fiberglass Semi Fender with ArmorCore is:

• Proudly made in the USA

• Backed by a 5-year product warranty

• Covered by a Lifetime Warranty against spider cracking

• Designed with decades of fiberglass manufacturing experience

• Shipped with quality, fitment, and performance guaranteed

💥 Ready to Run Bad Ass?

If you’re tired of fenders that splinter, crack, or fall apart, now’s the time to upgrade to the fender that works as hard as you do.