ONYX Biceps Curl sand-bag Linkage-Driven Motion Arms: Movement path

Linkage-Driven Motion Arms: Movement path follows the spine’s natural curve for smooth reps and stronger abdominal activation

6" H Box Dimension: 57

combining advanced biomechanics with user-centric adjustability

Widened Thigh Brace: Accommodates different leg sizes while increasing stability during heavy curls

1 in (1240 × 1125 × 1602 mm)

ONYX Biceps Curl sand-bag Linkage-Driven Motion Arms: Movement pathThe ONYX Biceps Curl is a high end plate loaded strength machine engineered for targeted biceps development with smooth, controlled curling performance. Designed for large commercial gyms and premium personal training studios, its modern aesthetic and solid construction deliver reliable training quality for high traffic environments. Adaptive dual angle handles naturally follow the users wrist path during movement to reduce joint stress, while