"Recumbents are slower on hills" — not this one!
The 4PowerBikes kit lets you add arm power to your recumbent. It requires no frame modifications, and thus is completely reversible.
Ergometer and riding tests show that the addition of arm power allows you to maintain a higher aerobic level. You're getting better exercise. More important, you're going faster!
Please email me if you have any questions!
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Here is the article I wrote that appeared in "Human Power: Technical Journal of the IHPVA in Spring 2002: Adding Arm Power to a Recumbent (pdf). (The article is extracted from the full issue.)
The article describes my initial prototypes, and several tests I made; my conclusion then — and now — is that arm-power allows me to go significantly faster than an upright in most situations — even in long uphills.
Arm power added to ICE Trice recumbent tricycle
Arm power added to EZ-3 recumbent tricycle
Videos of arm-power in action
Ben Brown's EZ-1 with arm power