What’s the cost of filling up a scuba tank?
http://wiki.answers.com/Q/How_much_does_it_cost_to_refill_a_scuba_tank
I’ll let someone else do the math if they wish.
I’m thinking for something this light, gas power would be more efficient.
$5 - $15 but that includes necessary exotic gases, assume $5 that $5 for sixty miles. That’s slightly more expensive than current gas prices. Plus you are by yourself and anything you carry better be in your pockets.
Same charge whether a small low pressure tank or a large high pressure tank. For this bike, a HP100+ would be the ticket. Not too heavy for the air load.
“Whats the cost of filling up a scuba tank?”
Depends on the size, generally around $12.