Master the Art of Muay Thai with World Class Instruction
Are you looking for premier K1 and Muay Thai classes in Crowborough? At Assassins Gym we provide an elite training environment where the discipline of traditional martial arts meets modern professional fight conditioning. We offer a comprehensive schedule of five classes a week specifically engineered to transform novices into skilled martial artists and amateurs into professional champions.
Expert Leadership | The Lewis Pears Difference
Our Muay Thai and K1 programs are spearheaded by Assassins owner and head coach Lewis Pears. Lewis is a highly qualified instructor whose career is defined by elite level success and technical mastery.
- Championship Pedigree British Kickboxing Champion and multiple gold medal winner at the ICO World Full Contact Kickboxing Championships.
- Proven Methodology Lewis focuses on creating strong, confident and highly skilled practitioners by identifying individual strengths and pushing every student to be the best they can be.
- A Stable of Champions Assassins Gym is not just a training hall, it is a breeding ground for excellence. We are home to multiple professional and amateur champions across K1 Muay Thai and Boxing.
Why Choose Assassins for Combat Sports?
- Elite Pedigree Train in the same facility that produces ONE Championship athletes and World Champions.
- Full Scale Facilities Access our upstairs combat zone featuring a full size boxing ring and professional striking equipment.
- Community Spirit While we train at a professional level we pride ourselves on being a friendly and inclusive venue for the Crowborough community.
- Personal Growth Beyond physical fitness our classes build mental resilience and self assuredness that translates into every aspect of life.

Classes for Every Age and Ambition
We believe that martial arts is for everyone. Whether you are training for self defence fitness or aiming for a world title our classes are scaled to your ability.
- Adult K1 | Muay Thai Intensive evening sessions running Monday to Friday. These classes focus on technical striking clinching and metabolic conditioning.
- Saturday Sparring A dedicated session for those looking to apply their skills in a controlled professional environment.
- Mini Assassins (Ages 4+) Our specialist junior program runs every Tuesday, Wednesday, Thursday and Friday. We focus on building confidence discipline and physical coordination in a safe and motivating setting.
- All Abilities Welcome From those picking up gloves for the first time to active fighters we ensure every student receives high caliber technical coaching.

Start Your Journey Today
The results of our training are evident in the achievements of our students every single day. Do not settle for a generic fitness class when you can learn from a World Gold Medalist and a team of pro fighters.



