Unit 3, 28 Rucklers Ln, Kings Langley WD4 8AU, United Kingdom
Reading, UK
JJK Fitness offers personal training, small group programmes, CrossFit classes, and group exercise sessions including HYROX-specific training. Their HYROX programme combines running and functional workout stations following competition principles, available to both competitors and regular members. The gym suits diverse fitness levels through options ranging from 1:1 coaching and structured 12-week programmes to group classes and online coaching, with nutrition workshops also available.
JJK Fitness is listed as an official HYROX affiliate gym, which means it runs HYROX-aligned programming and appears in the official training-club network. Members rate it 4.8 out of 5 across 98 Google reviews.