Adult Fitness Classes, Brought to You by HellerFit – Now at Team Speed
A supportive, high-energy fitness community combining strength and cardio, designed for adults who want results—and a crew that keeps them coming back.
Claim Your Free Week! View Membership Options Follow HellerFit on Instagram
What is HellerFit?
Show up for the workout. Stay for the people.
HellerFit, now running adult classes at Team Speed, is a uniquely designed group fitness program that blends strength training and cardio conditioning to help adults of all levels get stronger, more confident, and more consistent.
Whether you’re walking into your first workout or you’ve been training for years, our coaches meet you where you are—and push you toward your best. No two workouts are ever the same, and each week is strategically programmed to train your full body in a smart, sustainable way.
If you’re looking for an adult fitness program that delivers real results and a strong sense of community, this is it.
Class Schedule & Location
Class Times:
Monday thru Friday:
5:15 AM, 6:00 AM, 9:15 AM
Saturday:
6:45 AM (select weekends)
Location:
All classes are held at Team Speed in Littleton, Colorado.
Our facility includes 4000+ square feet of turf, strength and cardio equipment, and everything you need to get the most out of your workout.
Membership Options
Every new client gets a FREE WEEK—no strings attached.
Choose the option that fits your goals and schedule:
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Unlimited Monthly: $159/month
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8x/Month Membership: $139/month
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10-Visit Punch Pass: $200/pass
All memberships include:
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A new workout every day
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Coaching from Shelby Heller and the HellerFit team
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Access to our private members-only Facebook group
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Community social events
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Programming designed to be sustainable, challenging, and fun
Claim Your Free Week! Purchase a Membership or Class Pack
Meet the Coaches
Led by Shelby Heller, backed by an all-star crew.
Shelby created HellerFit to be more than just a workout—it’s a place where you can challenge yourself, lift others up, and become the best version of yourself. A former teacher and lifelong athlete, Shelby brings purpose, passion, and serious programming knowledge to every session.
Mallory Szefler
Mallory is a lifelong athlete, RN, and passionate coach who brings energy, encouragement, and a whole-person approach to wellness. She’s been part of the HellerFit community for years and is ready to support you on your journey.
Taylor Erbert
Taylor is a Colorado native, mom of three, and full-time hype woman. She’s a former soccer player who brings positivity, fun, and great music to every class—whether she’s coaching or taking class right beside you.
Want to learn more?
Why Team Speed + HellerFit?
This collaboration brings the energy and empowerment of HellerFit to the state-of-the-art training space at Team Speed. As a leader in youth and athlete performance training in Littleton, Team Speed is proud to now offer adult fitness programming with the same commitment to results, education, and community.
You get the best of both worlds: pro-level equipment and space, with coaching and community that make you feel seen, supported, and challenged.
Ready to get Started?
Try a class, meet the crew, and experience why so many adults say HellerFit changed their relationship with fitness.
Claim Your Free Week!
Purchase Unlimited – $159/monthPurchase 8x/Month – $139/monthPurchase 10-Visit Punch Pass – $200
Cancel your monthly membership anytime in the Momence App, online or by emailing our team at info@teamspeedco.com at least 2 business days prior to your next billing date.