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Kenny, nobody said the energy from the flywheel was free. Its sole purpose is to store braking energy which would normally be wasted as heat.
Yes, adding all of that complexity would only hinder long distance biking, but may be worth its extra weight when catching and releasing energy in stop and go city traffic.
It's exactly the same as in hybrid cars: Motor/generators, batteries, fancy electronics do pay off in traffic, but not in steady highway driving.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread
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