Old 11-18-19, 07:50 PM
  #15  
Tony_G
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Bikes: 2018 Cannondale Synapse AL 105 SE, 2017 Giant Roam 1

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Originally Posted by MidTNBrad
Check out Proshift. I don't know much about them, or even if they are still in business, but it looks like they brought something to market for automatic shifting.
That’s pretty much what I was imagining, plus a little more. I was thinking power and cadence, but I didn’t think of heart rate and GPS. I was surprised at the $700 price, but given the cost of bike accessories, I shouldn’t have been.

I think Shimano (or other OEM) could do it built in to the existing electronics with less weight. And maybe even for less money.
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