We Have a Program that’s Right for You!

martial arts family

Martial Arts for Families

In our innovative martial arts program for Families, everyone participates: children, parents, and grandparents can attend classes and progress at their own pace. In our action-packed family classes, no one sits on the bench! Children practice with other children, and adults practice with other adults. Martial arts classes are one of the only family programs where children and parents get the same kind of healthy exercise at the same time.

martial arts kids

Martial Arts for Kids

Our exciting martial arts program for kids can develop your child’s focus, self-esteem, self-confidence, and overall sense of purpose the way NO OTHER sport, hobby, “activity,” or program can.

HUNDREDS of parents and families in the Erie area are singing the praises of our children’s program, and telling other parents about it every day, because they’ve seen it for themselves, too.

martial arts class

Martial Arts for Adults

Our unique martial arts program for adults is the best way in the Erie area to lose weight and get in shape because every movement has a purpose – a self-defense purpose that might one day save your life!

Students from 18 to 80 also tell us they use the benefits of improved concentration, self-discipline, and self-confidence every day at home, at work, and in social situations.

Welcome to The Best Kajukenpo Lessons in Erie

teaching martial artsHi, my name is Sensei Bill McKinney,

and I’m very PROUD that families all over the Erie area are singing the praises of our programs and telling their friends and neighbors how much of a positive impact it’s having on their lives.

Peak Potential Martial Arts has become a landmark of Erie martial arts!

Get started now and find out how you can be healthier, happier, and more confident with Peak Potential Martial Arts training!

Physical and Mental Development

boy meditatingOur members tell us that they feel our school is more of an institution of self-improvement, physically and mentally, rather than “just” a gym or some “activity”.

I pride myself on helping our adult members safely build muscle, quickly burn fat, gain flexibility, and release stress in a FUN, positive, and injury-free environment! And for the children, parents all over the Erie area give my martial arts classes credit for increasing their child’s ability to focus, building their self-esteem, and igniting a passion for self-improvement they never would have expected.

Much More than Kicking and Punching

woman punchAlthough many people think the martial arts are just about fighting, the truth is that the physical “kicking and punching” are really just the “tools” that I use to teach the more important, and MUCH more valuable lessons about “yourself”.

When you train in our Erie martial arts program (which also serves Frederick, Firestone, Longmont), you take advantage of the best self-improvement system in the world.

Through the practice of physical self-defense skills, you will follow a blueprint for a successful life based on discipline, focus, and perseverance. Please take a few moments to browse this website, get familiar with us, then, take me up on my “No Strings Attached” offer, and see the benefits of my Erie martial arts program for yourself!

See for Yourself

Give me a call at (720) 515-3482 or click the program (above) that you’re most interested in!

I sincerely look forward to meeting you, and helping you and your family accomplish your goals!


Sensei Bill McKinney
Peak Potential Martial Arts

695 Pierce St.
Erie, CO 80516
(720) 515-3482

P.S. If you’re like me, you’d rather “see it for yourself”, rather than just take my word for it. So simply select the program you’re most interested in on this page, and take advantage of our Special Trial Offer!

So Awesome!!

Bill’s a great instructor and you can tell he really has a passion for this, Martial arts is such a great way to teach kids respect and discipline.

—Mathew Blackburn


Amazing teacher, reasonable prices. This school won’t disappoint!

—Briana Mckinney


Very Passionate instructor. It’s apparent that he loves what he does. Definitely check out his classes!
—Barb Blackburn