Inspire FT2 Weight System: Plate Weight, Pulley Ratio, and Effective Resistance

How much is each weight on the inspire ft2?

On the Inspire FT2 functional trainer, each individual weight plate within the two independent selectorized weight stacks typically weighs 10 pounds (approximately 4.5 kg). However, due to the machine's 1:2 pulley ratio, the actual resistance felt at the handle is half of the selected stack weight.

Understanding the Inspire FT2's Weight System

The Inspire FT2 is a versatile functional trainer featuring two independent weight stacks, allowing for a wide range of unilateral and bilateral exercises. Each of these weight stacks is comprised of multiple individual plates.

• Standard Plate Weight: Each plate on the Inspire FT2's selectorized weight stacks weighs 10 pounds (lbs).
• Number of Plates: Typically, each stack contains 16 plates, along with a top plate that contributes to the initial resistance.
• Total Stack Weight: This means each full stack provides a total of 160 lbs of resistance.

The Impact of Pulley Ratios on Perceived Resistance

A critical aspect of understanding the Inspire FT2's resistance is its pulley ratio. Functional trainers, including the FT2, often utilize pulley systems to modify the effective resistance and range of motion.

• 1:2 Pulley Ratio: The Inspire FT2 operates on a 1:2 pulley ratio for its cable exercises. This means that for every unit of weight you select on the stack, you are effectively lifting half that amount at the handle.
• Effective Resistance Calculation:
  • If you select 10 lbs on the weight stack (one plate), the resistance you feel at the handle is 5 lbs.
  • If you select 50 lbs on the weight stack, the effective resistance is 25 lbs.
  • If you select the full 160 lbs on the weight stack, the maximum effective resistance you will feel at the handle is 80 lbs.

This pulley ratio is a standard design choice in many functional trainers, offering specific benefits for training.

Calculating Your Working Weight

To determine your actual working weight on the Inspire FT2, simply divide the number indicated on the weight stack by two.

• Example 1: If you insert the pin into the 40 lb slot, your working resistance is 40 lbs / 2 = 20 lbs.
• Example 2: If you're using both cables for a bilateral movement (e.g., chest press), and each stack is set to 60 lbs, your total effective resistance is (60 lbs / 2) + (60 lbs / 2) = 30 lbs + 30 lbs = 60 lbs.

It's also important to consider:

• Cable Friction: While minimal, some resistance can be attributed to cable friction within the pulley system.
• Attachment Weight: The weight of the handle or attachment you are using is generally negligible but can be a factor for very light loads.

Why Pulley Ratios Matter for Training

The 1:2 pulley ratio isn't a limitation; it's a deliberate design feature that offers several advantages for diverse training goals:

• Finer Increments for Progressive Overload: By effectively halving the weight, the 10 lb plates translate to 5 lb increments of actual resistance. This allows for very precise and gradual progressive overload, which is crucial for strength development, rehabilitation, and avoiding plateaus.
• Extended Range of Motion: A lower effective resistance allows for a greater range of motion for many exercises, as less weight is required to move the cable through its full path.
• Suitability for High-Rep Training: The lighter effective loads make the FT2 ideal for high-repetition training, muscular endurance, and metabolic conditioning.
• Rehabilitation and Beginners: The ability to start with very light effective resistance (e.g., 5 lbs) makes the machine excellent for injury rehabilitation, beginners, or those focusing on movement patterns and form.
• Reduced Impact: Lighter effective loads can reduce impact on joints, making it a joint-friendly option for many exercises.

Maximizing Your Inspire FT2 Training

Understanding the weight system is key to effectively using your Inspire FT2:

• Focus on Effective Resistance: When tracking your workouts, always make a note of the effective resistance you are lifting, not just the number on the stack. This ensures accurate progression tracking.
• Prioritize Form: Given the machine's versatility, prioritize perfect form over lifting heavy. The smooth, constant tension provided by cables is excellent for developing mind-muscle connection.
• Utilize the Incrementality: Take advantage of the 5 lb effective increments to make steady, sustainable progress. Don't jump too quickly in weight.
• Combine with Smith Bar: Remember that the Inspire FT2 also integrates a Smith machine. This feature uses standard Olympic plates, offering a separate pathway for heavier, barbell-based movements, providing a comprehensive training solution when combined with the cable system.

Conclusion

Each weight plate on the Inspire FT2's cable stacks weighs 10 pounds. However, due to the 1:2 pulley ratio, the resistance you feel at the handle is half of the indicated stack weight. This design provides precise, incremental loading, making the Inspire FT2 an exceptionally versatile and effective tool for a wide range of fitness levels and training objectives, from rehabilitation to advanced strength and endurance work. Always remember to calculate your effective resistance to accurately track your progress and ensure optimal training.