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What We Do
Fitness
24/7 Gym
Unleash your fitness journey with our 24/7 gym, offering anytime access through a convenient keycard system, empowering you to work out on your terms, day or night.
Silver Sneakers
Elevate your fitness and well-being with our Silver Sneakers class tailored exclusively for individuals aged 65 and older, providing a supportive social environment and a variety of exercises to enhance overall health.
KX Cardio
Ignite your inner fire and unleash the ultimate 30-minute KXCardio workout with an exhilarating fitness experience that will leave you energized, and ready to conquer the world!
Personal Training
Experience exclusive, personalized fitness guided by our certified trainer, tailored uniquely to your goals, abilities, and lifestyle for optimal results and a healthier, fitter you.
Martial Arts
Kids and Adult Boxing
Our kids and Adult boxing class offers a workout that hones boxing skills, improves overall fitness, and provides a powerful outlet for stress and empowerment.
Adult Krav Maga
Our Krav Maga/AFS class is a highly effective self-defense system that combines practical techniques from various martial arts for real-world situations.
Adult Shotokan Karate
Experience the pinnacle of martial arts excellence in our adult Shotokan class led by our esteemed Grand Master, where you'll refine your skills, cultivate inner strength, and unlock your full potential.
Kids Karate
Our kids' Shotokan Karate class is an action-packed adventure where they'll learn awesome moves, gain unbreakable confidence, and make new friends while having a blast!
Adult Wing Chun - Kung Fu
Wing Chun Kung Fu is a Chinese martial art known for its efficient and direct techniques, focusing on close-range combat and simultaneous defense and attack movements.
Close Quarters Combat Grappling
Close Quarters Combat Grappling is an intense martial art that combines joint locks, chokes, takedowns, and ground fighting techniques for controlling and dominating opponents in close-quarters confrontations.
Who We Are
What People Think of Us
Keystone X Fitness & Martial Arts
67 N Main St, Dover
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All of the instructors are awesome here! Grand Master Matt and Master Kay are awesome at stepping in and helping out if your child is having behavioral issues as well. They're also awesome if your child has special needs. They're … More understanding and helpful and the first people that didn't make us feel bad for being "different". They've been helpful to Micah and our family and I'm grateful we have Keystone X in our lives.
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Very clean studio, American Fight System class was great. The class made me realize how important it is to be able to defend yourself. Instructors were awesome and made me feel confident in myself. Would recommend this class to anyone. … More
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I go here for boxing and it is so awesome. The people there are nice and help me learn a lot and for the six months I’ve been there. I’ve gotten really really good Matt a really good coach. James helped me out a lot and even the people … More who aren’t like helping Trainerswill give you a lot advice and it’s just a great spot, bro. It really makes you feel like a family.
