Speedometer for Roadster2

#1
I want to put these on my Rupp. My question is, does the speedometer activator go on the left side of the front wheel or the right? I did notice on my hub, on the right side, there is a hole where it looks like the tab would fit in to. I suppose the speedometer would only work if it was turning in the correct rotation. Has anyone ever hooked one of these up? s-l1600.jpg s-l1600 (2).jpg s-l1600 (1).jpg
 
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