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Old 06-24-2008, 11:26 PM
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Default My first EV project

I am a fabricator / ME. I wanted to build a light weight off road EV. This was my first time in the Ev world. This project was built about 3 years ago. It was a 48V system using an Etek motor, altrax controller, 14T front, 72T rear (if I remember correctly). The bike was a lot of fun to build. I just thought you guys would like to see this one.

LR
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File Type: jpg Bike frame 4 a.JPG (41.9 KB, 58 views)
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Old 06-25-2008, 08:03 AM
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Default Re: My first EV project

Wow that looks really professional, nice job!
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Old 06-25-2008, 11:37 AM
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Default Re: My first EV project

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Originally Posted by mattW View Post
Wow that looks really professional, nice job!
Thanks, I had every intention on building them and selling them. I just had way too much money into it and couldn't figure how to get the cost down without going to China. That bike cost me $3500.00 and thats with all my free labor. I didn't make any money on it. I would have had to sell it for 7K to 9K to make any money. I thought that was just to much.

As soon as I finish my latest ice conversion, I plan on gearing up for a new design, scratch build EV. (probably in the fall).

LR
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Old 07-12-2008, 04:52 AM
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Default Re: My first EV project

Sweet looking bike!!
Whats it like to ride?
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Old 07-12-2008, 08:06 AM
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Default Re: My first EV project

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Originally Posted by DVR View Post
Sweet looking bike!!
Whats it like to ride?
The bike was a blast to ride (sold it). Had lots of power and was fairly lite. The suspension worked very well. It could have used a little more braking power though. Mountain bike tires couldn't take the torque of the ETEK. It would rip the nobies off the tire. It was a fun project to build. I hope to be building another scratch built bike this year, (after my ICE conversion is complete) but it will be a road bike.

LR
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Old 07-12-2008, 07:51 PM
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Default Re: My first EV project

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Originally Posted by Lexus View Post
What Batteries did you use and how long was the range and speed
I had 4 "Hawker" sealed lead acid batts. 6v, I think they were 25ah. Ran them in series, for a 48V system. The bike would run at about 42MPH (67.59 kmh) top speed. I think the best distance I ever got at 80% DOD was around 18 or 20 miles. The bike weighed around the 130lb and I weigh in at 165 lb.

LR
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