Electric Bikes - Power assisted trike built by one of my customers

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jeff-o

07-17-07, 01:48 PM

Hi, I thought you all would be interested in this electric power assist trike built by one of my customers. It is an extremely neat conversion using a TW-Bents trike. It has dual 36V 8Ah (16Ah total) NiMH batteries powering a Crystalyte 500W hub motor. Range is between 60 and 120km! Check it out here. (http://cgi.ebay.com/Power-Assisted-Tadpole-Trike_W0QQitemZ120141525966QQihZ002QQcategoryZ106949QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)

quetzalcoatl

08-05-07, 04:13 PM

jeff-o: I'm confused by your numbers. 36V * 8Ah = 288Wh. To go 120km you'd have to consume only 2.4 Wh per kilometer. I have read elsewhere that the average mileage for an e-bike is about 10Wh per km. Also, 500W / 36V = 13.9A, and 16aAh / 13.9A = 1.15 hours. To go 120km in 1.15 hours would require travelling at an average speed of 104 km/hr, or 65 mi/hr. What gives???