Bike Forums - View Single Post - Cadence sensor only or do I need speed sensor also ?
Old 09-22-14, 12:54 PM
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Bikes: Fuji Roubaix Pro & Quintana Roo Kilo

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Originally Posted by WhyFi View Post
You'll want the speed sensor for those wintry days when the temps dip in to the 50s and you're forced to stay inside on the trainer.
+1 only reason I'd bother with a speed sensor. Over the length of a ride I've found GPS vs speed sensor speeds to be within .1 MPH. That is well within my comfort zone for accuracy. However, I'm not trying to set a Guinness Book of World Records speed record so YMMV.
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