Reformer Pilates Spring Settings: How to Choose Spring Colors and Tension

Reformer Pilates spring settings explained: compare color systems, see how tension affects support and control, and choose resistance for each exercise.

A lighter spring can make a Reformer exercise harder, not easier. Spring colours aren’t universal: Balanced Body uses green for heavy, red for medium, blue for light, and yellow for very light resistance, while classical Reformers commonly use four springs of the same heavy tension. This guide explains Reformer Pilates spring settings through both colour and spring count, so you can understand what a setup is designed to do.

A simple colour chart is useful, but the right resistance also depends on the exercise, the machine, and the person using it. Heavier springs can add support and stability; lighter springs can demand more control as the carriage moves. Neither setting is automatically better.

This guide explains how spring tension changes an exercise’s feel, how major colour systems differ, and why classical setups are often described by the number of springs in use. It also shows how to weigh control and support when choosing resistance, rather than relying on colour alone.

Key Takeaways

Spring colors vary by reformer brand, so use the machine’s own color system rather than assuming every color means the same resistance.
Classical reformers commonly use four springs of the same heavy tension, while contemporary setups often combine different spring strengths.
Lighter springs can increase the demand for balance and control; heavier springs can add support and stability.
Choose resistance with the exercise, machine, and user’s strength and experience in mind. Look for controlled, stable movement.
For instructors planning classes, ReformerFlow includes spring-setup details in its exercise library and can help organize sequences for a specific reformer.

What Color Reformer Springs Should I Use?

For beginner Reformer Pilates exercises, choose a setting that allows smooth carriage movement and steady control. Added tension can provide support. Adjust springs only when the carriage is stable, follow the Reformer manual, and seek help from a certified Pilates teacher if the setup is uncertain.

Spring Tension and Reformer Stability

Reformer springs oppose carriage movement, creating resistance while helping control the carriage’s return. Their tension affects how much support the moving platform provides, changing both stability and effort during an exercise.

For example, heavier springs can support someone who lacks stability. In legs-in-straps work, heavier tension can help support the carriage as it returns, while lighter tension demands more control. The useful setting depends on the movement’s purpose, not simply on which spring feels strongest.

Classical and Contemporary Spring Systems

Classical and contemporary Reformers organize spring tension differently. A classical Reformer commonly has four springs, all considered heavy and set to the same tension. Most contemporary Reformers, by contrast, have four to six springs and often offer different resistance levels.

A typical four-spring contemporary setup includes one heavy, two medium, and one light spring. Instructors can vary resistance by selecting a spring or combining springs. Classical settings are often described by the number of same-tension springs attached, while contemporary settings can distinguish both spring count and strength.

Judging Spring Tension

Judge whether the tension fits by the quality of the movement. If the exercise feels constricted or compressed, the springs may be too heavy. If the carriage is difficult to control, or you feel out of control, the springs may be too light.

These cues matter across movements. A lighter spring can make a plank on the footbar harder because it provides less assistance to the carriage. In footwork, heavier tension can shift the exercise towards strengthening the quadriceps and glutes. Adjust resistance to preserve controlled movement and the intended focus.

Adjusting Settings for Bodies and Skill Levels

Choose a spring setting according to the exercise, bodyweight, strength, experience, and specific reformer. A 150-pound experienced practitioner may need different resistance from a 110-pound beginner. Bodyweight alone doesn’t determine the setting; skill and the movement’s demands matter too.

For beginners, start with a resistance that supports control through the full movement. A 110-pound beginner may need more tension for support than an experienced practitioner. In one session, a beginner may also use different spring types as exercises change. Before adjusting, stabilize the carriage and use the machine’s manual as a reference. If the spring setup remains uncertain, ask a certified Pilates teacher for guidance.

How lighter springs can increase exercise difficulty

A lighter spring reduces the assistance acting on the carriage, so your body must do more to guide its movement. During a balance exercise, for example, the carriage can shift more readily beneath you. Your muscles must respond, making control a larger part of the work.

Spring resistance also changes through the range of motion. As the carriage travels farther, resistance increases and is greatest near the end of its range. A movement may feel manageable at first, then demand more effort as you extend farther. Less spring tension doesn’t mean less work.

That distinction matters when choosing settings for different exercises. In a balancing movement, lighter resistance asks you to manage both the exercise and the moving carriage. A spring setting that’s too light can disrupt movement and increase injury risk during balancing exercises. Choose resistance that lets you stay steady and complete the intended movement with control.

The exercise’s purpose also guides your choice. If you want the springs to assist a movement, more resistance can provide support as the carriage moves. If the goal is to challenge stability, lighter tension may increase the demand on stabilising muscles. The same setting won’t feel identical across every exercise or Reformer.

Plan the whole sequence, not just one movement. A demanding balance exercise may call for a pause before the next exercise, especially when control starts to fade. Use the break to settle your breathing, reset your position, and refocus on the carriage. Resume when you can guide the next movement steadily. Don’t rush just to keep the session moving.

During a class, instructors can offer different spring options for an exercise and observe how each person controls the carriage. If someone loses stability, a lighter setting may be too challenging for that movement. If the springs dominate the effort, more resistance may better support the intended action. The aim is controlled movement, not the lowest setting.

For instructors mapping spring choices across a class, exercise plans with spring-setup details can help connect each movement to its machine-specific setup. That makes it easier to consider resistance and exercise flow together, rather than treating each spring change as an isolated decision.

How reformer springs create resistance

Each spring connects the Reformer frame to the moving carriage. As the carriage travels, the spring stretches and pulls against the movement, creating resistance. The force increases as the carriage moves farther and is greatest at the end of the movement range. That’s why an exercise can feel different at the beginning and finish.

The spring load also depends on the machine and its setup. It isn’t a universal load or a direct measure of what every person feels. The exercise, selected springs, range of motion, and user’s control all shape the challenge.

Match resistance to the workout goal and the person’s experience. In a balance exercise, a very light setup can make the carriage harder to steady. A stronger setup can provide more support while someone learns to control the movement. Choose the spring option that allows stable, confident execution, then reassess if the carriage moves too freely or feels difficult to guide. Understanding Reformer Pilates spring settings in this practical way helps instructors connect resistance to movement quality.

Spring resistance differs from a weight stack. A weight stack uses selected plates to create a load, while a Reformer spring stretches as the carriage travels. Spring force therefore changes through the movement instead of feeling like one fixed load. For example, extending the carriage farther increases spring resistance towards the end of that range.

Resistance bands also rely on stretch, but their configuration isn’t interchangeable with Reformer springs. Bands may be used when the movement and equipment are designed for them; they don’t automatically reproduce a carriage spring’s resistance path. Keep the intended setup consistent so the band or spring supports the target movement instead of pulling from an unsuitable direction.

Brand differences matter when selecting equipment or adjusting a setup. Springs from one manufacturer aren’t compatible with Reformers from another brand, so don’t assume a spring that fits one machine will fit another. The machine’s own spring options determine how resistance is assembled. Instructors can offer at least two spring options for an exercise, and sometimes three, to adapt the challenge while keeping movement controlled. Understanding Reformer Pilates spring settings in relation to a specific machine is useful when planning a class.

Traditional reformer spring colors and resistance levels

Reformer spring colours indicate resistance levels, but their meanings vary by brand. Balanced Body uses yellow for very light tension, while Merrithew uses white for light tension.

Light, medium, and heavy describe relative resistance within a manufacturer’s system, not universal settings across all Reformers. Check the brand’s colour chart before interpreting a spring.

Traditional Spring Color Levels

Traditional colour coding groups springs by relative tension, giving instructors a quick visual cue when configuring equipment. The same colour can mean different resistance across brands, so a blue spring isn’t automatically equivalent on two machines.

For example, blue means light on a Balanced Body Reformer but medium on a Merrithew Reformer. That difference matters when following a class sequence or moving between machines: match the resistance category, not the colour alone.

Balanced Body Color Levels

Balanced Body’s spring chart assigns green to heavy tension, red to medium, blue to light, and yellow to very light. In practice, a red spring provides medium resistance, while yellow is the lightest category in this colour system.

Balanced Body also rates its blue spring at 50% tension. Treat that figure as a model-specific rating, not a universal Pilates measure. A spring’s color and rating make sense only within the Balanced Body setup.

Light, Medium, and Heavy Settings

Light, medium, and heavy describe a spring’s resistance relative to other springs in that brand’s system. Lighter tension means less spring assistance; heavier tension means more resistance and can provide more support during movement.

Merrithew illustrates why the chart matters: white is light, blue is medium, red is heavy, and black is extra-heavy. Its blue spring is rated at 50% tension, while its black spring is rated at 125%. Those percentages belong to Merrithew’s system.

Use this quick comparison before interpreting a color cue:

Balanced Body: yellow is very light, blue is light, red is medium, and green is heavy.
Merrithew: white is light, blue is medium, red is heavy, and black is extra-heavy.

This comparison shows why colour-only instructions can mislead. A blue spring means light tension on Balanced Body equipment but medium tension on Merrithew equipment. Likewise, red means medium tension on Balanced Body and heavy tension on Merrithew. Read the machine’s own chart, then choose the intended resistance category.

Spring dimensions don’t replace a tension chart. For example, Balanced Body long purple and yellow springs measure 31.25 inches, while its black springs measure 25.5 inches. Length alone doesn’t identify a spring’s resistance level; use the manufacturer’s color and setup information for that specific model.

Classical reformer spring settings by number of springs

Classical Reformer settings are often described by how many springs are attached, rather than by different spring colours. Most traditional Pilates Reformers have four springs, all considered heavy and set to the same tension.

The count matters: adding or removing springs changes the combined resistance, while each spring in a classical setup contributes the same heavy tension. A setting described by spring number is therefore different from a contemporary system that combines light, medium, and heavy springs. Count alone doesn’t express every detail, but it’s a clear starting point for understanding the setup.

Most standard Reformers have four to six springs attached to the carriage. A traditional four-spring Reformer workout may use one full-length spring and one half-length spring. These examples show why “four springs” doesn’t automatically mean all four are attached for every movement. The selected configuration shapes the tension the carriage provides during that exercise.

Four-spring traditional reformer: springs share the same heavy tension, and a workout may use fewer than all four.
Traditional setup example: one full-length spring and one half-length spring may be used together.
Standard reformer range: equipment may have four to six carriage springs.

Treat the count as a configuration, not a universal resistance measurement. One spring on a classical machine doesn’t translate directly to one spring on another manufacturer’s Reformer. Tension depends on the specific equipment, and springs from one manufacturer aren’t compatible with another brand’s Reformers. For consistent programming, identify the machine before translating a spring-count cue.

Strength and exercise purpose still guide the setting. Choose springs that let the user perform the movement with control, stability, and confidence. A setup that supports one exercise may not suit the next, because the movement’s purpose and the user’s experience can change. Spring count is a useful shorthand, but it doesn’t replace observing the carriage.

For instructors, record classical settings as a count and describe any full-length or half-length spring used. This makes a cue such as “one full-length and one half-length” more precise than “medium,” which may suggest a colour-coded contemporary spring category. Include the manufacturer and spring type in the note, especially when planning a class across different Reformers.

The practical takeaway is that classical spring settings are best read as counts within a particular machine’s system. Start with the Reformer’s spring arrangement, match the exercise’s intended resistance, then assess whether the user can perform the movement with control. A number is a useful cue, not a stand-alone measure of strength or difficulty.

Plan classes with reformer spring-setup details## ReformerFlow by Ginty: ReformerFlow App Subscription

ReformerFlow by Ginty’s ReformerFlow App Subscription helps instructors turn spring-setting knowledge into class plans. The app’s library includes over 400 Reformer Pilates exercises, with video, level, and spring-setup details. Exercise setups are personalized to the instructor’s specific reformer, making it easier to match a movement with its machine’s spring configuration.

Use it when class planning feels scattered across exercises, levels, and spring notes. You can build a class in about five minutes, then use glanceable teaching mode to keep the sequence accessible while teaching. The 14-Day Free Trial offers a way to explore the app’s planning workflow.

Visit reformerflow.app to explore the subscription and trial.

Make Your Next Class Plan More Intentional

With Reformer Pilates spring settings understood in context, the next step is to make each choice intentional across the full class. Think beyond a single exercise: consider how one movement prepares for the next, where attention needs to shift, and how an adjustment affects the class rhythm. A coherent sequence gives each transition a clear purpose.

As you plan, note what you want students to focus on in each movement. Is the priority steadiness, a smooth carriage path, or a deliberate change of pace? These cues connect spring choices to the teaching objective instead of treating every adjustment as a separate decision. Over time, your notes can also help refine sequences for different classes and experience levels.

Choose an upcoming class and review its transitions with fresh eyes. A small planning change can make your teaching feel more considered and the session easier to follow. Build that clarity, one well-shaped sequence at a time.

Explore ReformerFlow## Frequently Asked Questions

Do I need to remember all the springs?

No. Start by learning the spring chart for the specific Reformer you use, then connect each exercise to its intended setup. A brief class note can record the exercise, spring configuration, and machine, especially useful when teaching on more than one model. Colour alone isn’t a reliable memory cue across brands. Focus on recognising the setup that supports the movement, rather than memorising every colour combination.

What is spring tension?

Spring tension is the force a stretched spring exerts against carriage movement. On a Reformer, that force changes as the carriage travels, so the same setup can feel different at different points in an exercise. For example, extending farther increases resistance towards the end of the movement range. Think of tension as one part of the exercise load, alongside range, body position, strength, and the control needed to guide the carriage.

When should I adjust my springs?

Adjust springs when the next exercise calls for a different level of support or challenge, or when the current setup prevents controlled movement. Before changing them, bring the carriage to a stable position and follow the machine’s setup instructions. Inspect the springs, too: visible oxidation, a wavy exterior, or gaps between coils are signs they need replacing. Reformer springs are generally recommended for replacement every two years.

How do reformer spring colors and resistance levels vary by brand?

Colours aren’t standardised across Reformer brands, so identify the machine before interpreting a colour cue. For example, blue indicates light tension on Balanced Body Reformers but medium tension on Merrithew Reformers. Merrithew’s white spring is light, while Balanced Body’s yellow spring is very light. If a class plan gives only a colour, use that Reformer’s own chart before setting up the carriage.

What spring settings are commonly used for footwork, bridges, and leg presses?

There isn’t one universal spring count for footwork, bridges, or leg presses. Footwork may use heavier tension when the aim is to strengthen the quadriceps and glutes. For bridges and leg presses, choose a setup that suits the movement’s goal and lets you control the carriage throughout. The machine’s spring system and the user’s strength also affect how it feels, so a setting on one Reformer may not transfer directly.

What spring settings are used for arms, straps, and upper-body exercises?

Arm and upper-body settings depend on the movement, its intended focus, and how steadily you can control the carriage or straps. In legs-in-straps work, lighter tension makes movement harder to control, while heavier springs provide more support as the carriage returns. Use that contrast to understand resistance’s role, not as a fixed recipe for arm exercises. Keep the movement smooth and deliberate.

How does adding or removing springs change resistance and stability?

Adding springs increases the resistance opposing carriage movement and can provide more support; removing them reduces that assistance. The result depends on the Reformer’s spring design. On a classical Reformer, springs share the same heavy tension, so the count describes how many are engaged. Contemporary machines may combine different spring strengths, meaning two setups with the same number attached can feel different.

How do spring settings differ for standing, balance, and advanced reformer exercises?

Standing and balance exercises need enough resistance for controlled carriage movement. A setting that’s too light can make balancing unstable and increase injury risk. Advanced work doesn’t automatically call for the lightest springs: the exercise objective, practitioner’s skill, and ability to maintain control all matter. Choose a setup that allows steady movement first; increase the challenge only when stability remains consistent throughout the exercise.