Choppy ride with Fazua 50 data
This is from my first ride. I connected the ebike (Fazua 50) to Karoo 2 and started the activity. I noticed the K2 was showing zero for speed while I was simply coasting. Basically the first choppy part of the graph is not the bicycle speed but rather when I pedalled.
After 1 KM in the ride I switched to the wheel sensor.
E-bike motor speed sensor is not the same as a typical speed sensor attached on the wheel hub. The speed data by the motor is used to detect if the motor engagement is needed or not.
I tried reconnecting the sensor and while searching for a new sensor, it shows me the ebike with 3 data: cadence, speed, power, but it doesn't let me choose which one to pick. Forcing me to either to disconnect it altogether or use an additonal speed sensor to override.
I would be happy to hear how to disable the speed data from the cadence and power transmitted by the motor.
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Hi Tom,
Thanks for your response. I can only compare the end results with the devices I already have and both are from Garmin: Fenix 6s Pro and Edge 830. I also own the Fazua 50 since November 2022 and not a single activity recorded by Garmin devices had this issue.
K2 particularly stops recording Fazua's data when I stop pedalling (in particular coasting). Garmin devices never had interruptions, of course unless on auto-pause or manually pausing the activity.
Yesterday, I went on a 46 KM ride here's the cadence data from K2:
Over 40 spikes and each time no data is recorded since there was no pedalling motion. I can only see that whenever I stopped pedalling, cadence data is also missing. Missing data is one thing, recording cadence over 140 rpm multiple times up to 254 rpm is another.
There seems to be quite a few homework left to do by HH, not just for ebikes but also for example types of rides, sharing and syncing rides with other riders, etc.
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Two things:
1. I agree with the idea that if you want to know your power and power, don't rely on the Fazua system for either. They use it in a way that works for them, but either on my K2 or on my Garmin, their data is a bit funky.
2. Fazua has had problems with their bottom brackets where I believe their power sensing is located. It's devilishly difficult to diagnose but I believe the power inconsistency is symptomatic of a potentially bad bottom bracket. The other symptom can be sudden power drop outs of either short or long duration. Both of our e-bikes with the Fazua system have had bottom brackets replaced for that reason. It's aggravating.
Bottom line: If you want accurate power numbers, put your own power meter on. I have some Garmin PM pedals that I've been using and I installed a speed sensor on the bike. I let Fazua do their thing, and I do mine. That has worked.
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