STRONG | HEALTHY | MOTIVATED
Colossus Flex uses a holistic approach to physical and mental development. Only those who train physically, eat healthily and have a clear, future-oriented mindset can grow and achieve a new shape.
MY SERVICES
Take advantage of my personal training, group & class training, and workout & nutrition plans to get you closer to your dream.
PERSONAL TRAINING
You’ve always wanted a trainer who would be able to meet your expectations and goals? Make your dream come true and book a free trial training now. 1 on 1. Completely personal and without interfering factors.
GROUP & CoRUSE TRAINING
I offer my courses in cooperation with almost all well-known fitness studios in Berlin. Just write me and I’ll tell you when and where the next class is. I’m also happy to train just you and your partners, colleagues and friends.
ADVISE & COACHING
More than just a workout. A healthy diet and a forward mindset are essential. Customised for you, I’ll create a nutrition plan and help you tackle the issues that get in the way of your dreams.
MY VALUES – IN EACH TRAINING
My credo is simple: only a holistic approach to training will bring you forward. That’s why I combine a balance of body and mind, innovative training methods and an authentic style in my programmes.
BALANCE
Nowhere else is a balance of physical training, clear mind and healthy diet so important. Only the middle way moves us forward.
INNOVATION
My training methods are innovative and follow the latest findings of sports science. For an optimal adaptation of your training plan.
AUTHENTICITY
The training is always different and yet authentic. Follow me on a work-out journey through Berlin and discover what you are made of!
NO PAIN NO GAIN!
Are you ready?
As a personal trainer, group fitness instructor and certified nutritionist who has trained celebrities and been featured on Men’s Health and TV, Stefan knows what it takes to get you to the next level.
Stefan approaches each client holistically and individually. His goal is your goal. Do you want to be the best? Stefan will push you to your limits.
Or are you just starting out and you’re not sure if you can do it? Stefan’s rule #1. He will make you believe in yourself and soon you will be surprised at what you can achieve.
Having trained over thousands of people, he knows that paying attention to execution, technique and nutrition brings the best results. Now all you have to do is take the next step and invest in your best self.
His strenghts:
Streng-endurance training, performance enhancement / Mindset building/ fat loss / muscle building, professional sports, vegan cooking
His qualifications:
Personal trainer, fitness trainer B-licence, nutritionist vegan/vegetarian, life coach, cook
AND THAT’S WHAT MY CUSTOMERS SAY
Colossus Flex creates success that is tangible and fun.
Through Stefan I have become stronger and better. He shows me every time the way to be strong and to reach my goals! Clear 5 stars – an absolute recommendation.
Markus, 39
CEO of a Marketing Agency
Bomb motivation and quality. I had no desire to do sport, now I love it and have a healthy diet on top of that. With Stefan you don’t find any excuses to do sport.
Katharina, 22
Influencer
Stefan is not only incredibly professional but also very motivating. He is always available and adapts his training to each client. For me, absolutely recommendable!”
Nina, 27
Reality TV-Star
I have been training with Stefan since May 2020. The changes to my body are not only noticeable, they are also visible. I say I couldn’t have done it without a Stefan as my trainer.
Bernd, 58
Civil Engineer
Now it’s your turn! Your success story is waiting!
FAMOUS FROM
MY FITNESS BLOG
Here you can find all my thoughts, feelings and tips about nutrition, fitness and lifestyle.