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Matrix Fitness

MATRIX ULTRA - ONYX EDITION Calf Extension

SKU: MT-ONYXCALF

Product Overview

The MATRIX ULTRA Onyx Edition Calf Extension targets the soleus and gastrocnemius through a seated position with low knee angle. The adjustable foot platform and padded knee lever accommodate users of all sizes, while the exclusive Onyx black finish with premium upholstery creates a sleek, modern aesthetic.

Key Features

  • Exclusive Onyx black finish with premium upholstery
  • Seated position for targeted calf development
  • Adjustable foot platform for multiple foot positions
  • Padded knee lever with adjustable height
  • Selectorized weight stack with magnetic pin
  • Smooth cam system for consistent resistance

Technical Specifications

ManufacturerMatrix Fitness
CategoryStrength > Single Station
SKUMT-ONYXCALF
MovementCalf extension / seated calf raise
AdjustmentsFoot platform, knee lever
Max User WeightCommercial rated

Warranty & Support

Frame: 10 years, Parts: 3 years, Labor: 1 year.

For complete warranty terms including frame, parts, and labor coverage, please contact the manufacturer directly or speak with an Opti-Fit representative.