JJK Fitness
- Category
- Fitness Studio, Functional Training
- Location
- Kings Langley
- Rating
- 4.8 / 5 (98 reviews on Google)
JJK Fitness is a functional fitness studio in Kings Langley, Hertfordshire, offering a wide range of programmes to suit all goals and abilities. Members can choose from CrossFit, Hyrox, group exercise classes (including WOD, Spin, Boxing, Engine, Grunt, Yoga and more), personal training (1:1 or paired), small group PT, youth training, nutrition workshops, and online coaching.
All new members are invited to try unlimited classes for 7 days free of charge. The studio also organises events such as Hyrox simulations, CrossFit Games days, charity fundraisers, and international fitness retreats.
Opening hours
- Mon–Wed
- 06:00-20:00
- Thu
- 06:00-21:00
- Fri
- 06:00-19:00
- Sat
- 07:00-12:00
- Sun
- 08:00-12:00
Omdömen på Studiomaps
Inga omdömen ännu — har du tränat här? Bli först att berätta.
Is this your studio?
Claim JJK Fitness and add taster offers, more photos and more.
Similar studios
Guides to help you choose
All guides
Pilates or yoga: which one should you choose?
They look almost identical from the outside — a mat, comfy kit, a lot of breathing. They train very different things. We compare the goal, the intensity, the price and the class itself, using real data from 1,561 yoga studios and 1,563 pilates studios across the UK.
The best reformer Pilates studios in London 2026
We mapped all 127 reformer Pilates studios in London and picked out the best-reviewed ones – with their real intro offers, class prices and neighbourhoods, straight from the studios'' own price lists.