4 ms·

The human is more like >80% of the mass of the entire system, not ~75%.

• layer8 4y ago
  Not sure why this is downvoted. A normal bike shouldn’t weigh more than 15 kg (some weigh just half of that), so a human at 75% would only weigh 45 kg at most. Maybe people are thinking of e-bikes, which are a lot heavier.
  • mshroyer 4y ago
    My steel touring/commuter bike (not an e-bike) easily weighs more than that, at least if I count the lock and repair kit I keep attached to the frame.
    • fluoridation 4y ago
      Just how much extra equipment are you carrying? I would expect a bike like that unloaded to be around 12 kg.
    • layer8 4y ago
      Fair enough, but for a human, let's say weighing 70 kg, to be 75% of the total weight, the bike plus whatever is attached to it would have to be above 23 kg. You only reach such a ratio with extra luggage.