|Tacx trainer question||rollo tommassi|
Feb 12, 2003 12:19 PM
|I've got a Grand Excel....plus a Powertap on the rear.
The cadence and speed readings are matching up (within a point or two), but the wattage is way off.
The Tacx will read 84 wattage while the powertap computer will read 247.
Is there a fundamental difference in the way these two units measure, or is something not calibrated correctly?