Resistance feels higher for Original Neo than 2T

Hi - I have an Original Neo and a 2T.  To generate the same amount of power i have to work much harder on the original Neo (heartrate 8-10 bpm higher for same Zone 2 power output).  Anyone have any idea on what could be going on?  Is there some maintenance that I should do on the original Neo now that it's 6 years old?

  • You need to verify which Neo is the accurate (You need a bike powermeter), could be the Neo OG low and could be the 2T high (one of my friend had a 2T and that overreport the power with 15%, due to Roflbad factory calibration, he was very "strong" on that RoflRofl). 

  • That feels devastating to think about. But I’ll check.  Very annoying that they say it doesn’t need to be calibrated- but then sometimes they’ve calibrated it wrong….uggg

  • the factory slope calibration is different what you call "calibration". it is same as you buy a bath scale, there the company made a "slope calibration" where they "tell" the scale 10kg is 10kg by the own sensors, 50kg is 50kg, 100kg is 100. you get this scale and you need to tap/knock on it before stand on it, with this tap you make the "zero offset" calibration, where you tell the scale what is the zero point, the unweighted state. all the powermeters with strain gauges work like this, you need to make a "zero offset" calibration via Garmin head unit or from an app. the Neo is calculating the power from electricity , and not the physical power with strain gauges. and in this case the zero offset calibration is not exists, this is why you cant (zero offset) calibrate your Neos. in the factory humans make this slope calibration process with machines, so errors always exists. (especially if the QC is not enough strong, faulty unit can leave the factory...)