VForce Variable Force System: 2:1 vs 1:1 Explained (And How to Use Both)

Most power racks ask you to accept a tradeoff. You buy one pulley ratio and live with it, or you buy separate machines to get both. The Vesta Fitness VForce Series was built to remove that tradeoff entirely.

At the center of every VForce machine are VForce Knobs, a patented Variable Force System that switches the pulley ratio from 1:1 to 2:1 in about one second. No tools, no extender pin, no reconnecting cables. This guide breaks down what that actually means, how to use each setting, which exercises belong on which ratio, and why having this built into a power rack is a real training upgrade rather than a spec-sheet footnote.

What Is the VForce Variable Force System?

Every cable-based machine, including a functional trainer, moves resistance through a system of pulleys. The ratio describes the relationship between how far the handle travels and how far the weight stack moves.

• 1:1 ratio. Pull the handle 1 foot, and the stack travels 1 foot. The resistance you feel matches the number on the stack.
• 2:1 ratio. Pull the handle 2 feet, and the stack travels 1 foot. You feel roughly half the stack weight, but the handle travels farther and faster through the movement.

Most home cable systems are locked into one ratio or the other, and switching between them normally means buying a second machine or an add-on part. The VForce Knob is a patented mechanism that holds both ratios in a single turn on the same station. It comes standard on all five machines in the VForce line, from the VForce Wall Mounted Lat Tower to the VForce 3IN1 Max.

How to Use the VForce Knob

Switching settings takes seconds:

1. Locate the VForce Knob.
2. Turn the knob to select 1:1 or 2:1. No tools or pins required.
3. Set your pin on the weight stack after choosing the ratio, since the effective resistance you feel changes with it.
4. Adjust the VForce Pivot Arm to match your exercise. With 6 vertical and 9 horizontal positions, you can dial in the cable angle before you load the movement. 

The VForce System works with every cable on the rack, including the Pivot Arms and Footplate (if included). Each weight stack is controlled by its own VForce Knob, allowing you to set up a 2:1 exercise and a 1:1 exercise at the same time. This gives you greater flexibility and because the switch is instant, you can move between a heavy compound lift and a fast, cable-driven accessory movement in the same set without breaking your session to swap equipment.

 

Note: The VForce Wall Mounted Lat Tower features a single weight stack and one VForce Knob. VForce Wall Mounted Lat Tower.

 

1:1 Setting: When You Want Honest Load

Use 1:1 when the number on the weight stack needs to mean exactly what it says. This setting is built for controlled, heavy pulling and pressing work where you want direct, predictable resistance through the full range of motion.

Best exercises for the 1:1 setting:

• Seated or standing cable rows
• Lat pulldowns
• Straight-arm pulldowns
• Cable chest presses
• Single-arm cable presses for unilateral strength work

2:1 Setting: When You Want Speed and Range

Use 2:1 when you want the cable to move faster and travel farther for the same stack weight. This setting suits functional, rotational, and higher-velocity movements where range of motion and speed matter as much as raw load.

Best exercises for the 2:1 setting:

• Cable woodchoppers and rotational presses
• Standing cable punches or throws
• Cable lunges and split-stance pulls
• Face pulls and rear-delt work at longer ranges
• Light, fast accessory work at the end of a session

According to the American Council on Exercise, functional training is built around movement patterns like pushing, pulling, and rotating rather than isolated muscle work, which is exactly the kind of training the 2:1 ratio is designed to support.

 

Why a Patented Variable Force System Matters on a Power Rack

Traditionally, getting both a heavy-load cable setting and a fast, functional one meant buying more equipment. A weight extender pin here, a second trainer module there, every addition solving one gap and creating another line item.

Building both ratios into a single patented mechanism on the power rack itself changes that in a few concrete ways:

• One station covers more training styles. You can move from heavy rows to explosive cable work without changing machines.
• Supports progressive overload over time. As noted by Mayo Clinic Health System, gradually increasing the demand on your muscles, whether through added weight, speed, or range of motion, is central to getting stronger safely. Having two ratios on tap makes it easier to progress a movement without needing new equipment.
• Fewer future purchases. Because the ratio switch is built in and standard on every VForce machine, you are not buying extra hardware later to get functionality that should have come with the rack.
• Consistent hardware across sessions. No reconnecting cables or swapping attachments means less setup time and more consistent training conditions week to week.

Choosing Your VForce Machine

All five VForce machines include the patented Variable Force System standard, along with the VForce Pivot Arm and VForce Pegboard for attachment storage. The right one for you depends on space and how much rack you need:

VForce Wall Mounted Lat Tower – a cable-only station for tight spaces

VForce Wall Mounted Functional Trainer – a wall-mounted half rack and trainer combo

 

VForce 2IN1 – a half rack with a full trainer module

VForce 3IN1 – rack, Smith machine, and dual-pulley trainer in one four-post frame

VForce 3IN1 Max – the same three-in-one setup with a wider, more durable frame

If you are still deciding whether a power rack belongs in your home gym at all, our post on why every serious home gym needs a power rack is a good starting point, and our guide to power rack safety features covers what to look for before you buy. For a broader look at the full lineup, browse the VForce Series directly, or compare it against the Pro Series and Pioneer Series racks.

Frequently Asked Questions

What is the difference between a 1:1 and 2:1 pulley ratio?

In a 1:1 ratio, the resistance you feel matches the weight stack number exactly. In a 2:1 ratio, the handle travels twice the distance of the stack, so you feel roughly half the stack weight but move through a longer, faster range of motion.

How do I switch the VForce Knob between settings?

Turn the VForce Knob to select 1:1 or 2:1. The switch takes about one second and requires no tools, pins, or cable changes.

Which VForce setting is better for beginners?

The 1:1 setting is generally a good starting point since the resistance is direct and predictable. The 2:1 setting can be introduced once you are comfortable controlling faster, longer-range movements.

Is the VForce Variable Force System patented?

Yes. The VForce Knob is a patented mechanism, the first of its kind to hold both a 1:1 and 2:1 pulley ratio in a single turn on the same station.

Which VForce machine should I buy?

It depends on your space and training goals. The Wall Mounted Lat Tower suits tight spaces, the 2IN1 models combine a half rack with a trainer, and the 3IN1 and 3IN1 Max add a full power rack and adjustable Smith machine for a complete home gym in one footprint.