Custom builds or home-built electric motorcycles

Hello my wonderful forumers

I recently purchased a 250amp curtis controller to run my (max) 300amp etek motor. I have 4 7amp SLA's driving the whole setup and would like to know how to wire the throttle cables to the controller.
has anyone had any experience with these controllers? how do I find out which cable is the 'wiper' high' and 'low' ? what could I use a AA battery and hook it up to two random cables and check the resistance? how do I do this?

I would so greatly appreciate your help as I am new at this and would love to contribute when I learn lots more on EV's

thank you very much for reading thus far and I hope you have a lovely day!

yours

Nad

Ive taken spare parts off a second sunbird rad2go electric scooter, and ghetto rigged them to my mountain bike. I took the wheels and fit them onto the mountain bike, but I had to bend the rear fork to fit the hub motor, and the band brake wouldnt fit, there wasnt enough space for it. I took the plain front wheel and slapped it on the front, and the result was a short funny looking yet fast electric bike. the motor I think is 250w, and the controller was a 36v, but the controller burned out on me, and now im looking to replace it with a larger one. ive been looking at the ones here http://www.electricscooterparts.com/speedcontrollers.html#48v and this 60v version here http://tncscooters.com/product.php?sku=101218
Ive got 2 hub motors, and If thats too much current, could I ease the stress on the motor by adding a second one on the front forks?
Ive got:
2 250w 10" hub motors for a sunbird
5 12v 10ah Sealed lead acid batteries
3 12v 7.5ah SLAs
1 3 wire hall effect throttle

Should I purchase the 60v controller and just wire the batteries together, and If I do, should I connect both hub motors, or just one?

After successfully powering on the controller, it tells me (2,1). Which is throttle fault. I have the throttles hooked up correctly red-+5v out blue-TPS2 AN black-gnd. My question is if the throttle is not connected to TPS on the front of the controller, do I need to configure this in the software? I do not have the motor connected. Has anyone used Longma throttles?

Any advice or info? Also how much do they cost

Hi all,

I have been thinking of options for my next motorcycle build.

here is my website dedicated to the build so far and other past projects.

http://experimentalev.wordpress.com/

So here is the breakdown, it's powered by a perm 132 motor on 72v 60ah lifepo pack, I havent decided on a controller yet because I cant make up my mind. please give me your input.

I have used alltrax on 2 builds now and I LOVE it, they never get too hot,super relieable, and the programmable aspects of it rock.

but now I want re-gen capability, and as far as I know alltrax does not offer any...

I have heard the Sevcon regen controllers are pretty good, but are they programmable? the site does not say?

any helpful input would be greatly appreciated. Thanks

Any good investigators, could you dig out some more info? (admin, feel free to move post to a more appropriate section if desired)

http://www.samsclub.com/shopping/navigate.do?dest=5&item=418964

Hi, New Guy here.

I'm starting a conversion of this Ninja 250

As my first build, I am concerned with $$$. I will spend what's necessary but I don't want to go overboard.

I only need 30-40mph, and a very limited range of 5-10 miles. I am a pretty good mechanic with some welding experience, but little knowledge of what makes an EV go. This is my first project although I recently reworked my 1973 Auranthetic. Enjoy:

A friend has recommended this kit from electricmotorsport.com

EMC-R 48 Volt Motor Drive Kit

Includes: E-tek-R Motor, Alltrax AXE 4834, Magura Twist grip throttle, Contactor, Wire kit, Fuse and holder.

Price...........$980

Is this a reasonable place to start? Could I bodge together something less expensive?

I also need input on choice of batteries. I am thinking about going 48V.

Thanks,
Randy

Hi!
Some years ago my brother and me decided to convert an old motorbike into electric.

We removed the ancient oil burner and replaced it with an Etek, a 48v 400A alltrax, and 4 12v Lead batteries (the 4rth is inside the tail box).

The bike performs nicely, but we can't ride it on any road in Catalunya: It is not street legal. And we have no way to make it legal (real pity). We are only able to ride it during electric events and shows, using a special french plate designed for prototype testing. :-(
If the law changes and in the future it becomes legal, the first thing this bike will get will be a lithium battery!

You can read further details about this conversion here.
http://www.evalbum.com/1627

I've started a project to convert a 1986 Honda VF500 to electric drive. I'm documenting my progress on blogger, http://voltagefueled.blogspot.com V is for Voltage has already been a very valuable resource in my initial brainstorming and I'm sure glad you guys are here!

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.