Star Trac Instinct Bicep/Tricep – Dual Arm Machine
Model: IN-D5120
Commercial Dual-Function Arm Curl/Extension Machine
The Star Trac Instinct Bicep/Tricep – Model IN-D5120 is a commercial selectorized dual-function arm machine. Train both biceps AND triceps in one unit. Switch from bicep curl to tricep extension with quick cam change. Selectorized weight stack, ergonomic handles, built for gyms, schools, and training centers.
Condition: Just Off Lease
GOOD USED COMMERCIAL CONDITION
Frame is solid with normal gym wear – scuffs, scratches, some paint wear. Upholstery shows use but no major tears.
Cables, pulleys, and weight stack function smooth. Switches from bicep to tricep mode with no issues.
Structurally 100% – no bends, cracks, or frame issues. From gym liquidation.
Machine Details
| Brand | Star Trac | Series | Instinct |
| Model | IN-D5120 Bicep/Tricep | Type | Selectorized Dual-Function Arm |
| Function | Switch from bicep curl to tricep extension with quick cam change | ||
Key Features
- Dual bicep curl + tricep extension in one machine
- Pin-select weight stack – no plates needed, fast adjustments
- Quick cam change to switch between bicep and tricep modes
- Ergonomic rotating grips for natural wrist position
- Adjustable seat height with commercial upholstery
- Heavy-duty commercial steel – Instinct series build quality
- Isolated bicep curls + tricep extensions – full arm development
- Space efficient – replaces two separate machines
Specifications
| Footprint | Approx 50" L × 42" W × 58" H | Unit Weight | 450+ lbs |
| Frame | Heavy-duty commercial steel | Stack Type | Selectorized pin-select |
| Use | Isolated bicep curls + tricep extensions – full arm development | ||
Perfect For
- Commercial gyms and fitness centers
- High schools, colleges, training facilities
- Arm-focused training zones
- Facilities needing space-efficient arm equipment
- Beginner to advanced arm isolation training
Shipping & Delivery
🚚 WE SHIP NATIONWIDE
Freight shipping available – standard curbside delivery. Customer is responsible for moving it indoors upon delivery.
Free local pickup – Lancaster, PA 17601. Bring trailer and help to load. This is a heavy commercial unit at 450+ lbs.
For full details, visit our Shipping Info Page.
