Stephen, I’ve done a little bit of comparison with the IC4, a Wahoo Kickr Core, and some Favero Assioma power pedals. I was fortunate to have been using the Kickr Core before I got the IC4, therefore I knew the output was way off on the IC4. In fact, the first ride I did with the IC4 I joined one of the Tour de Zwift group rides, I started a little late and started in 400+ place. In about 8 minutes I had climbed past all 400+ riders into first place without hardly breaking a sweat! Also had noticed one of the time trials on that ride I must have done earlier on the Kickr Core I had done in 17 minutes, this ride I did it in 7 minutes. A comparison I did early on after getting the bike was the FTP ramp test. One day I got 183 with the Kickr Core, the next day I did it with the power meter pedals and got exactly the same. 10 minutes later (so probably not fully recovered yet) I did it with the IC4 and got 390. So in my experience the IC4 is outputting at least (and probably a little more than) 2x higher than what it should be. At first, talking with Schwinn support they made it sound like it was Zwifts problem. The last time I talked to them (a couple days ago) they said the R&D team was working on a firmware upgrade to fix the issue. Sounds like you cannot upgrade the firmware on the existing display, so will need to be replaced with a new unit once available. I asked him to please send me an email notification once they have new displays with updated firmware available. For now, I’m using the bike with the power pedals which works great.
1 Like