The magnets attached to the spokes of the cycle computer are fixed with screwing and scratches on the spokes, so buy a strong magnetic neodymium magnet and fix double-sided tape on the spokes and overheat the self-adhesive tape. Also assimilate into black spokes . When pulling it thinly stretched part self-fuses so it is easy to handle and can be cleanly pasted. The price is a little expensive, but the performance is outstanding.
Bicycle Cycle Computer's Sensor Magnet Used to Attach to a Spoke At the Beginning Thickness Too Much Worried Whether the Magnet's Magnetic Force Will Decrease But Since it is pulled and wound, it is wrapped with this thickness so it's just self-fusing with this thickness so you can undo it again Easy I think whether it is easy to buy if there is sale with a little short winding.