What is the difference between damper setting and drag factor on a Concept2?
The damper lever changes airflow through the fan housing. Drag factor describes the flywheel’s measured deceleration and is used by the Performance Monitor. Identical damper numbers can produce different drag factors on different machines, so the lever is not a universal intensity scale.
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Concept2 RowErg with PM5, Standard Legs
The PM5 provides onboard data without making a paid content subscription the center of the machine. Separating the rail and flywheel sections gives it a practical storage option.
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Identify the visible control
The numbered lever on a Concept2 fan housing controls how much air enters the enclosure. It changes the feel of the system as the flywheel accelerates and slows. Concept2 compares this role with gearing rather than treating the lever as a direct intensity setting. The user's input through the handle remains central to the resistance experienced. Concept2 damper and drag-factor explanation.
Concept2 recommends starting with a damper setting of 3–5 while focusing on technique. That is the manufacturer's starting guidance, not a claim that the same lever number produces identical drag on every rower.
Understand the monitor's different information
The Performance Monitor evaluates the flywheel's slowing behavior between strokes and uses drag factor in its calculations. The lever position is a mechanical adjustment; the drag-factor display is information about the resulting system behavior. Keeping those concepts separate helps explain why two machines can have matching lever positions while feeling different. A higher visible number does not automatically make a result more impressive or establish that the machine is being used more effectively.
Why the same lever position can vary
Concept2 identifies environmental conditions and material such as lint in the fan housing as factors affecting drag. Consequently, a setting remembered from a gym rower is not a precise calibration instruction for a home rower. If you want to understand a difference, record the actual machine and displayed drag information rather than only saying both were set to five. The observation becomes more useful when the equipment state is documented.
Do not confuse four different numbers
Damper position, drag factor, stroke rate and displayed output describe different aspects of the system. Stroke rate counts the repetition rate; it is not the fan's airflow setting. A display can show a change in one value without an equivalent change in another. When discussing the rower with support or comparing equipment behavior, name the field you mean. Saying the resistance number changed can be ambiguous if the monitor and lever are showing different information.
Equipment comparison
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How to display drag factor on a PM5
On the PM5 Main Menu, choose More Options, then Display Drag Factor. Begin rowing to see the measured value. Compare this displayed information rather than assuming the same lever number produces the same drag on another machine. Concept2 PM5 instructions.
Use the instructions for your monitor if its menus differ.
Keep maintenance separate from preference
If an established machine suddenly behaves differently, inspect it using the maintenance guidance before declaring that your preferred damper position has changed. Concept2's maintenance page includes checking for dust in the flywheel enclosure and cleaning as needed. Concept2 maintenance.
For an existing machine, use the RowErg maintenance schedule to assess fan cleanliness and changed operation. When buying used, a different displayed drag at a familiar lever position is a reason to inspect conditions, not by itself proof that the machine is defective.
More questions, answered.
Is damper ten the hardest or best setting?
Ten is the highest lever position, not a universal intensity target. Concept2 recommends starting at 3–5 while focusing on technique; effort still depends on how you row.
Should two RowErgs show identical drag at the same lever number?
Not necessarily. Machine condition and environment can affect the relationship between lever position and drag factor.
Sources & further reading
Manufacturer documents and primary sources used in this guide. The current manual for your exact model takes precedence when a version changes.
- Concept2: Damper Setting and Drag Factor
- Concept2 Model D / RowErg maintenance
- Concept2 PM5: how to use the monitor