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
| Manufacturer | Matrix Fitness |
|---|---|
| Category | Strength > Single Station |
| SKU | MT-ONYXCALF |
| Movement | Calf extension / seated calf raise |
| Adjustments | Foot platform, knee lever |
| Max User Weight | Commercial 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.




