Originally Posted by
John_V
Since I use my phone with a RFLKT and BT sensors the only BT based accelerometer available is the Wahoo RPM but that still leaves a magnetic speed sensor that I have to have. Luckily, I've not had any alignment issues because my bike is transported on a fork mount so I don't get the sensor bumped like you would on a trunk or hitch mount. Right now, the only time I have to align my sensor to the magnets is when I change the sensor battery.
You must have better luck than I. I don't put my bikes in the car but they go on hitch racks either on the back or on top. Either the magnet gets turned on the spoke or the sensor gets bumped somehow and they are out of alignment. Then multiply by both my wife's bikes and mine. The way you find out it's a problem when it malfunctions when you start riding. Then you have to stop, re-align, spin the wheel and verify. It's a pain.
Either way, probably within the next year, two at the most, with the steep drop in price of the actual accelerometer part thanks to smartphone volumes, you are going to to see the magnetic sensors go away anyhow. A very good thing.
There are several sensors that are in final testing now. I'm surprised that Wahoo hasn't announced one, it's got to be minor reprogramming on the cadence sensor they already have. I'm betting one shows up in time to ride with this spring.
J.