|Location||Austin, Texas US map|
|Vehicle||1994 Kawasaki KE100 |
My first motorcycle conversion after doing
over 15 ebike conversions. Still a work in
progress. It hauls my wife and I pretty
well, though it's a small bike.
|Motor||Perm Motor 132 Permanent Magnet DC|
This came off an old Zero motorcycle I
believe. Works well. Very quiet and smooth (I guess that's the benefits of brushed motors).
|Drivetrain||420 chain 16:56 ratio|
600 amp older model. It works, but has
it's quirks. Such as when I roll back on
the throttle I get a touch of regen. And of course how Kelly controllers ramp up current with speed. You can't get full power until at least
>70% of max speed. So takeoffs are weak,
relatively. I now have it set to 60%, which would be 360a peak, and I'm pretty happy with my takeoffs now. I still haven't seen more than 263a peak yet because I don't ride much above 50mph.
|Batteries||18, 68.00 Volt, Lithium-Ion|
2p18s Nissan Leaf cells. 3.7kwh. Total weight with battery rack is 82lbs. I am quite happy with this pack, they are staying very well balanced.
|System Voltage||68 Volts|
I just bought some Mean power supplies to put in series 3 x 25v for 75v and they output 14amps.
I almost always solar charge with my homebuilt panels which are 110v .8amp. When it's sunny I get about 500wh/day.
|DC/DC Converter|| |
Generic Chinese cheapie. 90v max, 10a max.
|Instrumentation||Cycle Analyst v 2.1 upgraded to high |
|Top Speed||58 MPH (93 KPH)|
limited by my current gearing of 16-56. It has no problem getting there quickly. I rarely go that fast though, since I avoid such higher speed roads. It's just so windy and load.
|Acceleration||Pretty good now that I have the amps set to 60% or 300. In reality I hit 242a, but only at high speed. Thanks Kelly |
controller for your restricted amps at low speed. It's no slouch now. Quite fun. I won't gear it higher as I avoid highways due to high power consumption.
|Range||70 Miles (112 Kilometers)|
|Watt Hours/Mile||50 Wh/Mile |
It seems 50wh/mile is the most common figure I see. It was 65-70wh/mile before my new homebuilt fairing which has clearly made a big improvement.
|Seating Capacity||2 adults|
|Curb Weight||230 Pounds (104 Kilograms)|
About 40lbs more than stock, but has loads more power now with the Leaf modules.
|Tires||Front is 17x2.75 Shinko street tire. Rear is a a Shinko 80/90-17. I will move up a size when it comes time for a new one.|
|Conversion Time||A lot of hours. Over a year. So much time |
spent reconfiguring, setting up drivetrain,
battery placement. Still not done, but chipping away slowly.
|Conversion Cost||About $2000. 1200 being the battery|
|Additional Features||I built a rear bike rack for it - such as "2x2" has done. Works great, installs in a minute with 3 wing nuts. Solid. Now I can go mtb'ing without using a car. I've used it to haul odd things too, such as bicycle kid trailers, a large window, large tools. Utility is important to me. I don't own a car myself, and believe in more than one use for a vehicle. |
|I would like to make a dustbin fairing for it. I think there is a lot of improvement in efficiency to be had with fairings. I feel like I'm a parachute when above 40mph. |
4/20/15 update - I tore the whole thing down and reconfigured the battery, motor and controller placement. More pics and update to follow soon.
5/17/15 - Added pics of the new motor and battery configuration, and shabby front fairing. Replaced the turn signals to cheap incandescent bulb instead of cheap LED (much brighter now). Swing-arm motor works good, less noise, slightly less good over bumps, but not a problem since I don't off road. The space I gained was HUGE.
7/27/15 update: I swapped the fork tubes for a TTR125 set, with a YZ85 front wheel and disc brake. This has made a huge improvement to the bike. I can stop quickly now, and the shocks act much better (though still soft). Currently no fairing. I will rebuild a better one soon.
6/12/16 Update: new front fairing made from coroplast built around a new front rack made of plywood and bike handlebars/rims. I used a GSXR headlight. I need to redo the top to make it enclose me more, it has a lot of room for improvement. I get a lot of comments, mostly positive. I didn't build it for looks. I built it for efficiency and almost 0 cost. It easily saves me 1000watts at 50mph. That's a lot of waste due to no fairing. Lately I'm doing food deliveries with it, so range is important when working all day.