Hello everybody. Have arrived to this nice web and forum, have read the FAQ, but have some questions.
Mine, is a Kawasaki ZZR 250 (same as Ninja 250). I make 45 miles/day to go and return from my work. So I think to have a safe margin should consider 60 mile range.
First question: Projects I have seen around tell about less mile range. I have thought about Lithium phosphate, do they have more energy density in relation with the weight and size? So the idea should be install more capacity in the bike to get more range..
Second question: Can be posible make a hybrid conversion? Keeping the actual motor, and adding an adicional electric motor, with no many batteries?
Thrid question: About transmission. CVT is the only system used on electric? I mean, I like the feeling of the six-speed. About CVT, does it behave like a 50cc scooter? I don´t like the feeling of the progressive tramsmissions since they have the feeling as it were sliding.
I suspect you´ll tell me I should keep the actual gas setup. Anyway I should ask for solutions for better mile range, and good speed, max 75mph or so.
Thanks in advance.
60 miles on a 250 is going to be hard. Mostly because there's not a ton of room for batteries. To get that range, you'd need 6-7kwh of batteries onboard, low rolling resistance tires, an efficient motor and controller and maybe some aero mods/weight elimination.
Can you charge at work?
You could do a hybrid, but it'd require lots of mechanical engineering, where would you put the motor?
Most motorcycle conversions are direct drive and do not have any sort of transmission or CVT. Some have experemented with keeping a 6-speed in the bike, but the gains are minimal.
If it were me, I'd keep the 250cc bike and built a project bike and see where you can get with that. Maybe a larger bike so you can fit more lifepo4 onboard.
____________
Travis Gintz
1986 Honda VFR Conversion
www.evfr.net
I´m afraid that I could charge at work if the battery was portable. So that would mean any type of Lithium ones. But that´s prohibitibe price. Just to get 3kwh would cost 3500-4000$.
Ninja 250 is not so small. I should need to measure but people often tells that it´s big for being a 250cc, and seems more like 600cc, there is smaller but no such diference.
I think should need six like this one http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=3509
but that´s a lot of weight really. 36kg each, so 216kg only for batteries is more than the weight the motorcycle has now.
So seems that I must forget the total battery for my issue.
I guess what type of batteries have the Vectrix superbike, with 80km of autonomy at 100km/h.
http://www.arpem.com/motos/modelos/vectrix/modelos-08/vectrix-electric-superbike.html
Maybe like this? http://www.evdeals.com/BidwellSecrets.htm
but I suspect I should need two sprockets, so maybe put neutral when running on electric?
Still no success, since with the motor inside, will have less space for batteries, so again should need Lithium , but the hot may be a problem, and seems not worth... mmm
So what limit the max speed? I supposed was because of the max rpm.
I have thought it aswell, it´s a good idea, maybe buying a motor damaged bike. But what cost would be the Lifepo4 to get 6kwh?
http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=5251
I should need two like this and would be 10000$!! Is there any other place where I should by batteries for 6kwh for a affordable price?
what about the Vectrix superbike, how much would cost, if will be on the road finally?
This guy manged to stuff 24 90ah TS's in his Ninja250. He even has a 60lb boat anchore series motor. Gets 60 miles. Check it out... http://www.evalbum.com/1407
That guy expent a lot of money in the conversion. Mine is not exaclty like the EX250, the Chassis is diferent. I didn´t like he had to take out part of the fairing. I think that could get more space if had put the motor in the side, like in the photo below. Do you think is posible to conect both electric and gas motors to the wheel maybe? With to sprockets?
I have to check if I should have problems to homologate the conversion in Spain.
Where should I check for battery prices, could you recomend me a link?
Have done more research, seems the guy used 24 of these batteries: http://www.evcomponents.com/ProductDetails.asp?ProductCode=TS%2DLFP90AHA
If I understand ok, the max power depends on the voltage used. I´ll have to make calculations about space on my Kawasaki.
what about motors, I see that most guys used big motors placed inside the bike, while the photo I posted from "Secrets of el ninja" book seems to win space for batteries, but what about power? I have no data about those Etek.
Could you tell me something about motors?
Suzuki seems will sell a model based on the GSX 750 chassis that seems to will have similar batteries mentioned. Have a look: http://green.autoblog.com/2008/11/30/ttx01-electric-motorcycle-built-for-ttx-gp/