Quote:
Originally Posted by Frank Lee
Why? Because bikes have relatively high rolling and aero resistance and relatively low weight. Sure, hills are one thing but out on the flats, bikes glide down like they are dragging anchors compared to cars, and even cars suck.
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It's all true, yet it works for me at the bottom of 5th. Of course it can benefit the most when it's hilly, I often don't bother with it on flat ground.
Another use: following the hectic flow of city traffic. They won't keep a steady speed.
And one more thing, when it's really useful: when you can't shift into the top gear. If it's a stronger bike, it runs awfully inefficient in lower gears. And even the aero drag is less down there. City traffic, again. Or many sharp turns.