💡 Important: This month, our partnership with ClassPass ends. Starting November 1, 2025, you will no longer be able to check in to Gym Forty Five Amsterdam with your ClassPass membership. We're consciously choosing more exclusivity and quality for our own members.

We've had a wonderful partnership, but unfortunately, we're no longer on the same page when it comes to how we treat members. This has prompted us to discontinue our partnership, effective immediately. 

Our new group class that sets Gym Forty Five apart. In just 45 minutes, FORTY FIVE X the best of strength training, explosive movements and functional performance into an intensive full-body workout.

The class is designed to push your physical limits and maximize results – regardless of your level or experience. Whether you're a beginner or have been training for years, the small class size (max. 8 participants) ensures plenty of personal attention and coaching to help you get the most out of your workout.

Every week the training has a different structure, but always according to our proven FORTY FIVE X method: intensive, goal-oriented and challenging.
Not a standard group lesson, but a premium training experience for everyone who wants to go to the next level.

During the month of October, each member may bring one guest to a FORTY FIVE X class for free.

The entrance remains the same — but inside, everything feels renewed.
The gym is more spacious, the towel service more luxurious and the experience more refined than ever.
With three new performance machines — SkiErg, Rower and AirBike — we take every training to the next level.
Every detail, from the layout to the lighting, reflects our commitment to quality, privacy and performance.
Welcome to the new chapter of Gym Forty Five.
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