| Owner | Tom Piraino | ||||||
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| Location | West Bridgewater, Massachusetts United States map | ||||||
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| Vehicle | 1990 Suzuki Katana sportbike to EV bobber | ||||||
| Motor | D&D Motor Systems, Inc. ES-15 Series Wound DC Tried advancing brushes 10 degrees, but it lost a lot of starting torque. went back to neutral timing and it's fine(no arcing). probably because batteries sag to 80-85 volts at full throttle. | ||||||
| Drivetrain | 520 x ring chain 13/56 sprockets | ||||||
| Controller | Curtis 1221C mounted on a big heat sink | ||||||
| Batteries | 32 CALB/Skyenergy calb 70ah, 3.20 Volt, Lithium Iron Phosphate 24 cells inside frame,8 in saddle bags. | ||||||
| System Voltage | 102 Volts | ||||||
| Charger | 8x10 amp and 1x3 amp Chinese chargers from battery space, 1 for every 4 cells. Cells stay pretty well balanced with this setup. The chargers get hot but they're still working. | ||||||
| Heater | Motor DOES get hot if you beat on it. | ||||||
| DC/DC Converter | none 20ah aux batt w/separate 3 amp charger | ||||||
| Instrumentation | Large screen Cycle Analyst HC/HV. Wonderful little instrument. | ||||||
| Top Speed | 70 MPH (112 KPH) Lost a little speed with the lithium conversion, but gained a little acceleration(lighter) and doubled the range | ||||||
| Acceleration | From 10mph to 60mph it's about like a sportster or bonneville. Below 10mph and above 60, it's about like a 250. | ||||||
| Range | 40 Miles (64 Kilometers) 40-45 miles if you ride like an old lady(40-45mph and easy on the throttle), 35 miles if you ride it like you stole it. | ||||||
| Watt Hours/Mile | 170 Wh/Mile 160-180@40-45mph, 200-240 if you beat on it | ||||||
| EV Miles |
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| Seating Capacity | 1 adult | ||||||
| Curb Weight | 500 Pounds (227 Kilograms) lost 90lbs going from lead to lithium, but it's still no lightweight | ||||||
| Tires | Metzeler 110/80 zr17 front, 130/70 17 rear | ||||||
| Conversion Time | 500 hours? | ||||||
| Conversion Cost | over 6 grand | ||||||
| Additional Features | Expanded metal bodywork! | ||||||
| Went from lead to lithium 10/11. Lost about 5-6 mph top speed(75 to 70) with the same gearing, but gained some acceleration because it's 90 lbs lighter 5/12/12: Batteries seem to like the warm weather. 78deg F today, went 53 mi on 67(out of 70)AH @40-45 mph. 7/14:Bike is for sale, asking $2995.00. | |||||||
1990 Suzuki Katana
Last Updated 07-26-2014
Copyright © 1997-2024 by Mike Chancey