1. Efficiency (Watts/mile): 14 to 18, depending on load
2. Speed (mph | kph): Typical average, 18 mph, city + highway riding, 17 miles round trip
3. Gradient (%): moderate hills, 3%, a few short 7-8% hills
4. Pedaling effort (none, light, heavy, extreme): heavy to start, light continuous
5. Bike Type (roadster, MTB, trike, others): Surly Big Dummy longtail
6. Motor Model: BMC V1 geared
7. Controller Model: Various, including BMC 25A, and Crystalyte analog 35A
8. Battery (Voltage/Capacity): Various. Typically LiFePo4 10Ah or 2x10Ah, 36V. Sometimes 48V, efficiency is similar.