Originally Posted by Drew Eckhardt

Kurt Kinetic with the Pro flywheel upgrade.
Kurt Kinetic Pro on left with 18 pounds (6 standard +12 pro upgrade) of flywheel, 3000W maximum resistance, 5.2 cm roller to limit slippage.
Performance Travel Trac right with 3 pounds and 1000W maximum, 3 cm roller.
No comparison - I returned the Travel Trac to get an open box Kurt for $100 more.


Versus other units: The increased inertia feels better, and may make indoor power numbers closer to outdoor. The resistance is more stable with temperature, leakage is less likely with a magnetic coupling to the fluid resistance unit not a shaft with a seal that can leak, and it's more stable.

The resistance is calibrated to match a 165 pound rider outdoors on a 1% grade, and allows accurate power calculation from speed which they provide with the included smart unit.