Drag Factor

What is Drag Factor?

Drag factor is a normalized measure of the resistance the flywheel feels during each stroke on a Concept2 rowing machine. It is calculated automatically by the PM5 monitor from how fast the flywheel decelerates between strokes, so it reflects real air resistance — not just the damper lever position. Because it accounts for temperature, humidity, dust, and machine wear, drag factor lets you set the exact same feel on any Concept2 anywhere in the world. Most adult rowers train at a drag factor of 110-140. Concept2 recommends roughly 120-130 for general training. Heavier or more powerful athletes often prefer 130-150, while lighter athletes and those working on technique may choose 100-120. Sprint pieces are sometimes done slightly higher, but training day-to-day at very high drag factors increases injury risk and hides technique flaws. To check your drag factor, press Menu → More Options → Display Drag Factor on a PM5, then row a few strokes.

How Watta Uses Drag Factor

Further Reading

• Concept2 Training Resources — Official training guides and workout plans from Concept2.
• Concept2 RowErg Specifications — Technical specifications and performance monitor details.
• World Rowing — The international governing body for the sport of rowing.