Group Fitness Classes on the Upper West Side
Small Group Classes. Expert Coaching. Real Results.
★ 4.8 from 1,400+ ClassPass reviews
Fitness Classes That Actually Coach You
Most group fitness on the Upper West Side comes in two flavors: big-box classes where thirty people copy the front of the room, or boutique studios where one format fits all. Momentum's classes are a third thing. Every workout class here is capped at 8 to 10 people, small enough that your instructor can correct your form, big enough that the energy in the room pushes you harder than you'd push yourself. And the people teaching are certified trainers, with credentials in personal training, corrective exercise, and kettlebell instruction behind the class plan, not just an instructor certification and a playlist.
No membership required. Grab a class pack or subscribe monthly and show up.
What to Expect in Class
Known by name
With 8 to 10 people in the room, the instructor sees every rep, offers modifications when you need them, and progressions when you are ready.
Programmed, not improvised
Exercise classes where strength work builds week over week, and conditioning is structured rather than random.
Every level welcome
A room that welcomes beginners without boring experienced athletes, because coaching scales to the person, not the class average.
Small Group Strength Classes, Without the Membership
If what you want is small group strength classes, that is the backbone of the schedule: barbell, kettlebell, and circuit classes in groups of 8 to 10, programmed to build week over week. Small group classes are the middle ground between a crowded big-box class and one-on-one training: you get real coaching at a class-pack price, with the group pushing the pace.
Find the Right Class for You
Strength & Conditioning Classes
Build real-world strength, endurance, and power with functional strength training and conditioning. These classes combine kettlebells, dumbbells, bodyweight training, and high-intensity circuits, taught by instructors who include RKC-certified kettlebell coaches. From learn-the-fundamentals sessions to high-intensity circuits, every class scales to your level.
Yoga & Mobility Classes
Improve flexibility, balance, and strength in a supportive setting. From accessible breath-led flows to recovery-focused sessions built for people who lift and run, these classes are guided instruction in alignment, mindful movement, and breathwork, for every experience level.
Join a Class Today
Select a package and start training. Group fitness class sessions are valid for any class on our schedule, subject to availability, and must be reserved in advance. Class packs DO NOT expire, and you can share them with friends and family.
*Select a package below to proceed to checkout. Pricing is displayed on each option, with bigger discounts for larger packages.
Take 10 or more classes per month?
Take advantage of our Monthly Subscription options and save! Monthly classes expire one month from initial use and classes DO NOT roll over. Unlimited class subscriptions are not transferable and must be used by the person named on the account. 10 Class Passes are shareable but must be all used in the allotted time frame.
Frequently Asked Questions
The questions we hear most about signing up, class sizes, and cost.
How do I sign up for a class?
Through the class schedule on this page, powered by MindBody. Choose your class, reserve your spot, and show up ready to train.
Are group fitness classes effective?
Coached ones are. Group energy helps you show up and work harder, but results come from coaching and progression. That is why every class here is capped at 8 to 10 people with a certified trainer watching your form, so you get the group's energy and the coaching that makes it count.
How much are group fitness classes?
Classes run on packs, with bigger discounts for larger packs, and monthly subscriptions if you take 10 or more classes a month. There is no membership fee on top. Current pricing is listed with the packages above.
Can I drop in, or do I need a membership?
No membership, ever. Buy a class pack, reserve any class on the schedule, and come in. Packs never expire and can be shared with friends or family, so an occasional drop-in habit does not waste your money.
What's the difference between group classes and personal training?
Classes give you coached training in a small group at a lower per-session price, following the class program. Personal training is one-on-one and built entirely around you. They stack well: many clients train with a personal trainer and add classes for extra volume and variety.
Do I need to be at a certain fitness level to take a class?
Not at all. Every class is designed for all experience levels, and instructors offer modifications and progressions to meet you where you are.
Are class sizes limited?
Yes, every class is capped at 8 to 10 participants. That is the difference between being coached and being counted.
Are there showers or changing rooms available?
Yes. Full locker rooms with showers, day lockers, and complimentary towels.