Yes, nobody likes to spin 140rpm for extended periods of time, but at 50mph you’d have to find a mostly straight section of road over 4 miles long just to hold it for 5 minutes.
But I get it. Some people don’t want to spin 140rpm for even 15 seconds, and I wouldn’t want someone with a less than smooth form bouncing in their saddle at 50mph.
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It's like riding a bicycle