This is helpful. I have a 48T ring on the bike I have on the trainer and I have been able to ride some with the virtual shifting. I’ve not been able to reproduce the problem I originally observed that led me to start this post. However, I would say the virtual shifting feels odd to me, even when it is “working.” It feels like it is drifting around, if that makes sense.
I didn’t even know the Neo 2T had this cadence sensor issue and my bike needs the extension. I have noticed wonky cadence at times.
I’m going to fix the cadence issue and see if it seems to work better.
I’ve never used virtual shifting before, so I don’t know what it is supposed to be like, but from watching DC Rainmaker and GP Lama’s videos, it seems like it is supposed to feel more normal than what I experience. It doesn’t feel like normal gearing for me, even when it isn’t going crazy.
I agree with you, the virtual shifting does not feel as physical gears, may be because the wrong gears auto-detection or not, I dont know, but there must be a related bug for sure. At least I would like an option to set manually the gears configuration instead of auto-detection, it would solve most of the problems we have with virtual shifting.
That’s it … he was right, it IS the cadence dropping. My cranks were 50mm away from the sensor so I put a solid copper wire extension on the NDS crank.
It works flawlessly now, not a single glitch in an hour long ride.
I used copper and made sure it was grounded to the cranks, this creates an earth loop to the tacx and improves the pickup sensitivity.
OMG, I can now use my simple old Fixie on Zwift… Fab!
Just to add detail and embelish the solution… I removed the crank extension and tried using an old cadence sensor to see if that worked. Cadence was flawless in Zwift but the power problem came back. The TACX must use it’s own cadence sensor ‘internally’ to calculate power. Put the crank extension back on and binned the sensor… all working as it should again. Not had a problem in weeks now.
I have had annoying resistance issues with my Neo 2 T: while riding with a steady cadence and power output, the resistance briefly jumps up about 50 watts. I have tested using PM pedals, a separate cadence sensor and other tricks I have found from the forums, but nothing has helped. Today before my ride I attached a piece of flat metal to my NDS crank arm, so that it is closer to the Neo internal cadence sensor. The resistance jumps are gone.
