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CrossFit Gym in Longmont, Colorado

Find lasting success in a supportive community

Our passionate and knowledgeable coaching staff will strive to help you reach any goals, both inside and outside the gym
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Start at any level

Whether a gym rat or a beginner, anyone will feel comfortable at our gym.

Expert guidance

Our certified trained staff will ensure you are doing exercises safely and efficiently.

Judgment free

We are all learning and growing. If you win, we all win.

Every body is unique.
Find something that works for YOU

CrossFit Classes

Not only do you build strength and endurance with high-intensity, you also get to be part of the best fitness community in Longmont.
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Main Programs

Gymnastics

With the proper training and with equal work on strength, flexibility, and coordination, anyone can learn pull-ups, handstand push-ups, muscle-ups, you name it.
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Main Programs

StrongFit Classes

Out of all the gyms in Longmont, nothing compares to our StrongFit Classes. This program is designed to build the broadest, general, inclusive fitness possible.
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Main Programs

Getting started is easy

01

Book Your Free Trial

We want to hear your fitness goals, assess a good starting point, and even let you try out a class for free!
02

Try a Free Week of Classes

Get guidance tailored to your body and progress consistently. We will guide you every step of the way.
03

Find a Supportive Community

Getting fit is hard; staying fit is harder. We're here to ensure you build healthy habits and systems that keep you on the right track.

Trusted and Loved By Hundreds of Longmont, Colorado Residents

Everything you need to crush your fitness goals

Personal Training

Open Gym

Easy Scheduling

Weekend Classes

Top of the line equipment

Nutrition Programming

KJ CrossFit

Our community is what makes us special. And it's what will keep you going

There are a lot of gyms out there. Very few have a tight-knit community like we do.

Our trainers have the expertise and training to help you create a plan that is best for you.

We don’t believe in quick fixes or gimmicks. We care about your long-term success above all else.

Conveniently located just minutes from Longmont and Firestone

Working out at the gym isn't easy. But getting there shouldn't be hard. KJ CrossFit is located and easily accessible from all of Longmont, Colorado.

1566 Vista View Dr. Unit B, Longmont, CO 80504
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Questions? We (probably) have the answers!

Do you provide free refreshments there?
Do I have to be fit to join?
What payment methods do you accept?
What kind of movements/exercises can I expect?
Do I have to stop eating my favorite foods?

Still curious? Talk to us!

Punch excuses in the face. Being fit is a choice.

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Final Offer
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