At last, I got a GARMIN EDGE 520J Bundle Bike GPS :)))))
because I wanted to know my cadence and my heart rate 🙂
and I’m interested in GARMIN.
This is a cadence sensor on the crank.
Here is a Speed sensor. it’s attached with hub.
Garmin Edge 520 GPS Bike Computer with Strava Live Segment Challenges
Edge 520: Getting Started
Edge 520 Tutorial Videos
Not Japanese Edition below!!