Cortex SM-25/SM-26/PR-4 Jammer Arm Upgrade Attachment Magnetic Resistance Spin Bikes During a workout

During a workout

barbell and kettlebell exercises

employing new material techniques to bring more muscle to any fibre

quiet ride

Cortex SM-25/SM-26/PR-4 Jammer Arm Upgrade Attachment Magnetic Resistance Spin Bikes During a workoutTransform your strength workouts with the Jammer Arm Upgrade Attachment, a diverse tool for unlocking a more complete range of strength exercises. This cutting edge upgrade enables you to target different muscle groups with precision, whether you're into powerlifting, bodybuilding or functional fitness. Compatible with the PR 4, SM 25 and SM 26 power racks, youll enjoy our high quality materials, superior padding and black powder coating for the