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Road Legal StreetQuad conversion

83460 Views 216 Replies 24 Participants Last post by  Firehuntah

Been lurking this awesome forum for nearly 2 years now, gathering information about all the components for a conversion and I think it's time to slowly get started on my first project.

First let me introduce myself. My name is Rob, I'm almost 24 years old and I live in the Netherlands. Currently I'm working as a maintenance mechanic for a cable company. I'm really into cars and anything else on 4 wheels, always have been. It's only since 2 or 3 years ago that I really started to like electric vehicles though. I think mainly because of the performance of the Tesla Roadster, never thought an electric could go so fast while not emitting anything. Little did I know back then. :)
The more I started researching electric cars after that, the more I started to like them. And now I'm at a point where I really don't want anything else than electric anymore. Sadly for my job I'll still have to stick to gas since it's a company car. But for driving in my free time I'm planning to get a quad bike converted to electric. And maybe in the future a car when I have some more experience.

So, moving on to the project with the quad bike I'm planning.

My skill level: Not that great, but I know the basics since I studied for car mechanic for a few years, I just ended up doing something else. As for fabrication, I don't know how to weld and stuff like that so I'll probably have to get motor mounts and battery boxes made. Or I could start learning how to weld. :rolleyes: Fabricating small things like copper plates for battery connections shouldn't be a problem though, have the tools for that.
Range: I'd like to get a range of at least 80km (50 miles) at 80% DoD, which I think should be possible since the quad bike I'm looking for weighs only 170kg (375lbs). Not sure how aerodynamic it is, it is pretty low to the ground though. Make and model of the quad bike is a JLA Loncin Streetquad in case you want to look it up since I don't have any pictures myself yet.
Performance: The top speed has to be between 85-100kmh (53-62mph). Also want decent acceleration, compareable to the original 250cc motor. Not sure how fast that would be though since I haven't driven on one yet. Max 8-10 seconds to top speed I guess.
Budget: I want to spend around 6.000-6.500 euros ($7.800-$8.400) max for the conversion. Any more than that and I'm not really sure if it'll be worth it for a quad bike.
Parts I've already considered:
GBS 12v 100Ah pack x4 (for 48v system) + BMS and display
LMC LEM-200 127 Motor (contacted LMC, they suggested I use a LEM-200 D95B instead but I'm not sure which would be better)
Alltrax AXE4844 Controller (LMC suggested the Sigma PMT445 if I'd go with the D95B Motor)
Curtis PB-6 Throttle
DC DC Converter (not sure how much watt I would need)
Charger (not sure yet, needs to fit in the small frame where the gas tank currently is, do want to get a full charge within 6 hours or so though)

With these parts I expect to be around my budget price, I'm just not sure if these parts will be good enough to get the performance I want, especially with a 48V system. Was looking for 72V as well but I'm not sure which batteries I could best use for that since I can't really fit 72V with prismatic lithium cells. The A123 pouch cells would have been nice but I guess it's not really possible anymore to get them from a reliable source.

Also, being in the Netherlands it's pretty hard to find good parts for the conversion since there has to be a CE mark on all of the electric components I'll be using to avoid an EMC (or EMI) test for road approval, which would cost 1.300 euros ($1.700).

That's about all I know right now, hoping to get some feedback on the parts I've chosen. Or suggestions for other parts that are better suited and not too expensive. :) And if it's possible to do this conversion with a 48V system or I should go higher to 72V with different batteries.

Thanks in advance!
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Re: Planning a road legal Quad bike / ATV Conversion

I think one of the main advantage of a quad compared to a motorcycle is the possibility to put the motor on the rear swing arm and let all the available space of the original motor for the battery. (watch the second picture of the gallery)

Go with 72v for higher performance and put the maximum battery (40Ah, 60Ah or more) in the frame.
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