Just starting out

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lpranal
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Joined: Tuesday, March 2, 2010 - 09:23
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Just starting out

I'm gathering the components for a build, just wanted to put my ideas out there to see if I'm on the right track. I'm starting out with a schwinn heavy duty http://www.americasbikecompany.com/2009_Schwinn_Heavy_Duty_Yellow_Black_Bike_p/209heavyduty.htm I bought used (planning on upgrading the brakes obviously). What's nice is the bike already has rear dual racks for mounting everything.

Only thing I have so far is the motor, did a little research on Heinzman motors and they seemed well made (the price was right too):
http://cgi.ebay.com/36-volt-electric-hub-rear-wheel-Heinzman-for-26-bikes_W0QQitemZ110466488045QQcmdZViewItemQQptZCycling_Parts_...

looking at controllers on ebay, would this work?

http://cgi.ebay.com/36V-500W-Brush-Motor-Controller-Electric-Bike-Scooter_W0QQitemZ200437898162QQcmdZViewItemQQptZAU_Toys_Hobbie...

and of course, batteries. I'm probably going to go the SLA route (3x 12v 10AH) just because it's the cheapest at this point, hoping to upgrade as new stuff comes out. My daily commute is going to be 4 miles one way, max. I usually take my fixed gear road bike, but it sucks riding to work when it's hot out, and I can't carry much. I've been building bikes (mostly mountain) for a few years so I'm pretty handy on that end, just starting out with the electric stuff. Any input is appreciated!

PJIII
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Joined: Friday, March 26, 2010 - 11:24
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Re: Just starting out

You sure got a good deal on your hub motor! You link to the bike is broken so no comment other than heavy duty is the way to go in my opinion---the frames take quite a bit of abuse going as fast as the motors will push them & you do not want cracked welds or metal fatigue. You had better do some research on the controller & motor before committing to that controller---confirm the motor is brushless or not along with the controller. Also, confirm the wattage of the motor so it matches or better yet is somewhat under the motors wattage. I would contact the EBay seller for all details on the controller such as e-brake lever connection,Cycle analyst, & other connections. Use this link to both look at this controller Golden Motor Controller for feature comparisons and possible purchase at I think, $65.00---they are cheap just to get them into the market---it is their "NEW BABY". They use this model on their bicycles. They produce other models also---its worth a look.

Cyclone 650 watt 24V trike

lpranal
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Last seen: 10 years 8 months ago
Joined: Tuesday, March 2, 2010 - 09:23
Points: 5
Re: Just starting out

Thanks for the response, I've been doing a little bit of research and purchasing. I ended up with what should be the correct controller (500w, 36v, brushed) to match the motor, a hall effect throttle, 3 SLA batteries and a charger. My next issue is going to be wiring. the charger is a 3 pin, so i'm going to have to find a connector for that, figure out where to put a fuse (i'm assuming between the last battery in series and the controller) and how to wire up the throttle/indicator (5 pin) to throttle on controller (2 pin) and indicator on controller (2 pin).

PJIII
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Joined: Friday, March 26, 2010 - 11:24
Points: 82
Re: Just starting out

Sounds good---you can get the connectors here electric scooter parts I am concerned about your 5 pin throttle w/ 2 pin socket on your controller. Look at throttles at the link I put up---there are 3 types---on/off, potentiometer, & Hall Effect. A potentiometer type will not work w/ Hall Effect type controller and a Hall Effect throttle will not work with a non-Hall Effect controller. I think you are going to have to come up w/ a 2 wire throttle to match your controller. I am afraid there is something out of kilter with the 2 pin plug for throttle on the controller in that after searching I can only find on/ off throttles w/ 2 pins. It takes at least 3 for a Hall type & 3 for a potentiometer type. Ok, I found one---a 2 wire throttle hereParts for scooters I think I figured out in my brain the circuit of the 2 wire throttle & it is possible though rare I think.

Ok, here is what to do. Google search for "two wire scooter throttle" & you will find them---huh, I learned something!

Cyclone 650 watt 24V trike

lpranal
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Last seen: 10 years 8 months ago
Joined: Tuesday, March 2, 2010 - 09:23
Points: 5
Re: Just starting out

looks like i was wrong - the throttle input on the controller IS 3-pin after all. there is also a 2-pin "indicator" connector. Now, the throttle has a battery meter, and it also has 4-pins- just going off previous experinece here, But i'm guessing the two will share a ground on the 4-pin throttle controller?

PJIII
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Last seen: 10 years 3 months ago
Joined: Friday, March 26, 2010 - 11:24
Points: 82
Re: Just starting out

I believe your best bet now is to try all combination's but what you should do is order a three pin throttle for about $12.00 or so---then you will have it right. Look up on google " scooter throttle schematic & look for a four wire and a three wire & see what you can learn.

Cyclone 650 watt 24V trike

richardb
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Joined: Monday, August 25, 2008 - 11:35
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Re: Just starting out

Good to see others trying their hand at building e-bikes from scratch. You might get some ideas from my experience. I documented the project at:
http://bergerweb.net/electricbike
Lots of words... some photos, and some statistics.

Dickey_b
Waste Not, Want Not

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