Well, it has a magnet that you attach to a spoke and a sensor you strap with included zip ties to your front fork. The sensor communicates to the computer unit wirelessly. The computer unit and clip are separate pieces so that you can take the computer off the bike. The clip attaches to your handlebar with zip ties, like the sensor. It's between an inch and an inch and a half in width, and will fit on any open part of your handlebars.
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If I am not better, at least I am different. --Jean-Jacques Rousseau
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