Bicycle Mechanics - Spacing question on computer for Surly.
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06-13-08, 08:55 PM
I just purchased a cateye strada cadence rd 200 for my Surly LHT and I am mounting sensor and magnet on rear. Does the gap have to be less than 3mm like the instructions say? Even with the spacer they send with it the gap is way more than 3mm. Should I just keep using more spacers? The seperate cadence sensor on crank is still more than 3mm but should be easier to adjust to get closer. Any ideas and did anyone else have this problem? If it works with a wider gap should I just leave it as is? Or does that throw off calibration?:mad:
06-13-08, 09:58 PM
Many manufacturers are a bit conservative on their specs so you may be able to exceed 3mm and still get good results. Try it and see how far you can go. There is no true "calibration" issue. The computer just counts the number of times the magnet passes the sensor - if it is too far away you will miss some counts (and display a lower cadence and speed than actual).
06-14-08, 06:02 PM
buy some rare earth magnets like this and use silicone or goop to glue one to your spoke. then you can have a 15mm gap......
you can used 1/2 inch ones on your pedal bolt ont the inside of your crank arm for cadence too.....no glue needed!
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