Concept2 is the standard for indoor rowing. The Model D is the machine you’ll find in collegiate boathouses and CrossFit boxes. Its reputation is built on a simple premise: consistent, measurable performance.

The PM5 monitor is the reason for that consistency. Every stroke’s data—your pace, power, and stroke rate—is captured and stored. This lets you compare today’s workout to last month’s, turning effort into objective progress. The air resistance is self-regulating; pull harder and the fan creates more drag. It’s a smooth, connected feel that mimics water. The build is industrial, with an aluminum track and steel frame that handles up to 500 pounds without a creak.

It’s not a quiet machine. The whoosh of the flywheel is a constant companion. The upfront cost is significant, but the durability is legendary. This is a tool for the long haul, designed to outlast trends and provide honest feedback for years.