While biking recently, my cycle computer pooped out on me. Today, as I investigated it's apparent damage, I noticed that the 17 year old plastic mounting bracket bolt had literally worn out from hundreds of kilometers of riding, on 4 different bikes. The sensor measures the amount of times a spoke-mounted magnet passes it; with that and the wheel diameter entered [26.5] it calculates your speed and mileage.
Thinking it busted, I waved the sensor across the spoke mounted magnet, and was very pleased to see the cycle computer was still functional.
After messing with the original mount and finding it next to useless, the inspiration came to me from ineluctables Instructable on making a wallet out of old mountain bike tires.
An old bike tire is a very useful item.
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Signing UpStep 1Items Required
Pliers
Wire cutters
Hole punch or pokey tool of some kind.
Small and medium zip ties
2" slice of old MTB tire
2 or 3 slices of old inner tube.
Electrical tape
Black UV resistan Zip ties, small and medium. [Don't use the white ones, they go brittle quickly when exposed to sunlight /UV rays.]
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