Originally Posted by
j814wong
One poster brought up that older PowerTaps can be found for $200 or so. Asides from obvious technical improvements that result in greater accuracy, is there really much significant difference between those older models at that price and the newer fancier models?
You get the same accuracy as the new models.
Sealing against water has gotten progressively better with the new ones.
Weight matches the wireless models which followed, as in 412g for the SL wired like the SL+ ANT+ model, although you'd have the 12mm aluminum axle some big riders find flexy compared to the 15mm they upgraded to if it hasn't been back to the factory for service. The current G3 ($800 new) is 330g.
BUT the wired units only talk to a CycleOps "Cervo" aka "Little Yellow Computer" via a stay mounted shark-fin antenna, not your sexy Garmin. That uses a proprietary download cradle and software versus the Garmin's mini-USB cable which lets it mount like a hard drive for processing or upload.