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View Full Version : First Post, Question about Front Hub Motor



Mike
07-03-2008, 12:26 PM
First off I wish I discovered this site before I invested so much $$ in my http://www.americanspeedster.com/side-kick.htm (http://www.americanspeedster.com/side-kick.htm), anyway live an learn. Donít know If I will ever finish it but if I do it looks like it will be a maintenance night mare!

Purchased Brad & Kathy's "Bicycle Builder's Bonanza" book along with the "Big Blue Book of Bicycle Repair" book, between those two books I might be able to build something functional.

Anyway back to my question:

I'm about to purchase the "Silent Speedster Electric Scooter" plans. I have a 20" Sparrow brushed motor, mounted to a front wheel, 2 36VDC 12 AMP Gel Battery Packs, and the speed controller. I'm curious if it would be possible (sensible) to use the Sparrow front hub motor as a front wheel drive on the SSES along with the pedal drive on the rear wheel of my donor bike. Donor bike is a 20" girl's bike with 36 spoke wheels, 10 speed. I have a Boy's BMX bike with 48 spoke wheels, single speed. I will probably swap out the rear wheel, from the Boy's bike to the Girl's bike since I believe I will want some gearing, and would like to have the extra sturdiness of the 48 spoke wheel. However I will need to also swap the 'free wheel' since the girl's bike is a 10 speed and the boy's BMX bike is a single speed.


Thanks for listening to my ramblings........Now to get back to blowing holes in some metal, been a while since I've used my welder!

Mike

SirJoey
07-03-2008, 12:33 PM
Hi Mike. Can't answer your question, but just wanted to welcome you to the Krew!

I bought the BBB myself, along with several sets of plans. This stuff is addictive, as you will learn!

I've been checking out those Crystalyte hub motors myself & I'm really "chomping at the bit" to get one, but it's a little out of my reach monetarily, just yet. Their new batteries sound awesome, but at over a grand, YIKES, that'll put a dent in the ol' budget!

Anyway, good luck with your project, & be sure to take lots o' pics during the build!

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

Mike
07-03-2008, 12:54 PM
Thanks for the welcome, much appreciated!

Yes some of the http://electricrider.com (http://electricrider.com/) stuff can get pricey! The 20" Sparrow should be here today, and for about $200 it seemed to be a reasonable price. I Purchased this for the AS Side-Kick, but the more I work on that PVC monster the more dough's I have about it's durability. Not trying to bash AS, I like the design, but I believe that some/all of it needs to be welded 'top rail' or EMT.

If weight is not a major concern Gel Batteries can be had at a reasonable price. For an experiment I bought 6 of these to make my two 36VDC 12 AMP battery packs: http://www.bgmicro.com/index.asp?PageAction=VIEWPROD&ProdID=12853 (http://www.bgmicro.com/index.asp?PageAction=VIEWPROD&ProdID=12853), Since BGMicro is close I just went down there and picked them up, no shipping charges!

For Speed controllers and assorted electrical stuff this site looks promising www.tncscooters.com (http://forum.atomiczombie.com/www.tncscooters.com) I got the Model CT-660B9 36VDC 40AMP controller along with various other items.

Anyway I needed a 'boost' on my AS build. I had to take a vacation from it and did some internet searching, found zombie and I think I'm hooked! Got the wire welder out and started burning up some chain link top rail yesterday. Boy had to set the welder on low and keep the feed speed on about '3' on my Harbor Freight flux core welder to keep from blowing through. Need lots more practice! Yes I had the garage door open and a big 'hurricane' shop fan going while I was welding the galvanized!

Mike

SirJoey
07-03-2008, 01:05 PM
BTW Mike, I love your avatar! Where'd you find that ol' pic of me, anyway? :D

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

Mike
07-03-2008, 01:14 PM
Since I'm also an electronics nut, I hang out here: http://forums.parallax.com/forums/ (http://forums.parallax.com/forums/)

Stole the avatar from Oldbitcollector on that forum. My avatar on that forum is an old toy called "Big Trak"

jimFPU
07-03-2008, 02:00 PM
Mike, I just discovered the joy of BGMicro yesterday! Man, the place is a wreck inside but they seem to have some great treasure in there!! I got some lights so I could start riding to work as the days get shorter again. Battery and lights might weigh a pound to a pound and a half! And they are BRIGHT!!:eek:

Mike
07-03-2008, 02:07 PM
Yup they are a mess but have some good deals! Like BAT1087.

They are handling the sale of 16K+ of these that I ran into. If I knew how to safely build a lithium battery pack I would have used them myself. Was afraid of a 'thermal event'!

Don't fear the dane, he's a kitten!

AtomicZombie
07-03-2008, 03:07 PM
Welcome!

Your idea would work perfectly. Just watch pedal clearances and keep the batteries out of the way of your legs.

Brad



First off I wish I discovered this site before I invested so much $$ in my http://www.americanspeedster.com/side-kick.htm (http://www.americanspeedster.com/side-kick.htm), anyway live an learn. Donít know If I will ever finish it but if I do it looks like it will be a maintenance night mare!

Purchased Brad & Kathy's "Bicycle Builder's Bonanza" book along with the "Big Blue Book of Bicycle Repair" book, between those two books I might be able to build something functional.

Anyway back to my question:

I'm about to purchase the "Silent Speedster Electric Scooter" plans. I have a 20" Sparrow brushed motor, mounted to a front wheel, 2 36VDC 12 AMP Gel Battery Packs, and the speed controller. I'm curious if it would be possible (sensible) to use the Sparrow front hub motor as a front wheel drive on the SSES along with the pedal drive on the rear wheel of my donor bike. Donor bike is a 20" girl's bike with 36 spoke wheels, 10 speed. I have a Boy's BMX bike with 48 spoke wheels, single speed. I will probably swap out the rear wheel, from the Boy's bike to the Girl's bike since I believe I will want some gearing, and would like to have the extra sturdiness of the 48 spoke wheel. However I will need to also swap the 'free wheel' since the girl's bike is a 10 speed and the boy's BMX bike is a single speed.


Thanks for listening to my ramblings........Now to get back to blowing holes in some metal, been a while since I've used my welder!

Mike

Mike
07-03-2008, 03:14 PM
Thanks Brad!

I've been totally impressed with what I've seen so far (your efforts on your books and this forum), keep up the good work!

Mike

AtomicZombie
07-03-2008, 03:35 PM
Thanks dude!

Brad

jimFPU
07-14-2008, 12:31 PM
Mike, have you recieved the motor yet? I was considering one of those for my current bent, and maybe future Street Fighter!

How does it work?

Mike
07-14-2008, 01:16 PM
Yup got it a week or so ago, works great!

Had to see something move, so I located a Wal-Mart that had a three wheeler, mounted it on that for the time being. My wife has posted some pictures here:

www.breathingarts.blogspot.com (http://www.breathingarts.blogspot.com/)

Bike will go as fast as 25+ MPH, too fast for this type of tike! About 15 MPH is ok as long as the pavement does not get too wiggly. And since it's a tike, it's a little different than riding a bicycle!

AS PVC Car on indefinite hold right now.

Mike

jimFPU
07-14-2008, 02:00 PM
Darth Vader bike helmet!? Man I gotta see that!!

Did you notice a big weight difference with/without the motor? I mean when you are using pedal power alone, was there a noticeable difference in human power exerted?

Mike
07-14-2008, 02:20 PM
Rim with sparrow motor is about 15 lbs and battery pack with electronics ect. Another 30 lb. So about 45LB added to the stock trike.

Stock trike will only pedal to about 8 to 10 MPH (single speed), so with the motor running the trike above 10 MPH there is no reason to pedal.

Didn't really notice the weight difference, I usually get it going with the pedals and then hit the thumb throttle to get up to cursing speed. Motor will propel the trike from a dead stop on flat pavement, but pedaling while getting up to speed, I believe, will extend its range (yet to be determined). I'm about 175LB so with all the stuff mounted and the 30 pack, I believe I'm at this trike's weight limit.

Trike is a Worksman Port-O-Trike PT2F, they make an electric one like I tossed together, from its specifications, it looks like mine has about the same performance or a little better, cheaper too.

Changed the 'white wall' tires out with some high pressure tires from the LBS, run the new tires at about 80 PSI, even though they can go as high as 110 PSI. Need to get a seat with some springs!

SirJoey
07-14-2008, 02:23 PM
Kool, Mike! I'm sooooo jealous. I want a hub motor & battery so bad, I can taste it!

If anyone sees Santa, tell him I'm being VERY good this year...

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

TheKid
07-14-2008, 04:47 PM
He knows the truth, Joey. All those kids bikes he delivered have somehow appeared next to your bus.
I'm saving for a Bion-x with the lithium packs. The whole enchilada weighs a mere 14 lbs.

SirJoey
07-14-2008, 04:54 PM
...I'm saving for a Bion-x with the lithium packs. The whole enchilada weighs a mere 14 lbs.

U suk 2.
I hate u all.
Taking my toys & going home...

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

TheKid
07-14-2008, 08:07 PM
The way things are going, the Bion-x will not be in the near future. Maybe a year and a half.

SirJoey
07-14-2008, 09:53 PM
The way things are going, the Bion-x will not be in the near future. Maybe a year and a half.

Really? Why's that? Demand outpacing supply?

On the Crystalytes, they're now saying 6 months if u want the "good" battery.

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

TheKid
07-14-2008, 10:08 PM
I don't have the cash. The Bion-x with lithium batteries runs about $1500. A grand with SLA batteries. Unless I could find a local store with a less expensive motor of equal quality and lithium battery packs, I'm sticking with Bion-x. Of course if I find a used motor real cheap, I'll go that route for now.

SirJoey
07-14-2008, 10:39 PM
Oh, okay, gotcha. In that case, the one I want will prolly take that long, too! :(
Worse still, I'm looking at about $2400! I'm soooo tempted to put it on the plastic, but if I do, by the time I get it paid off, I may have 3 large or more in it! YIKES!

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

jimFPU
07-15-2008, 08:57 AM
Cut up the plastic!!! Run Joey Run!!!

Pay cash, then at the end of the day it's really yours!!!

SirJoey
07-15-2008, 12:40 PM
Cut up the plastic!!! Run Joey Run!!!
Pay cash, then at the end of the day it's really yours!!!

Ah yes, soooo true, Jim. The spectre of the evil plastic card looms like a menacingly dangerous storm cloud.

Still... it's somehow, strangely & seductively compelling... I can't look away... it beckons me...
like a moth drawn to the flame...

HELP!!! :eek:

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

jimFPU
07-15-2008, 01:47 PM
Stand fast young Padawan!! Let the Force flow through you...confusion is the Dark side. Anger, pain, debt, death...choose not those!

Focus!!! Take the scissors...cut the card. It will break the bonds of the Dark side!!!http://bestsmileys.com/scifi/18.gif

SirJoey
07-15-2008, 02:56 PM
http://img378.imageshack.us/img378/4118/spunkyvaderfv3.jpg

http://img384.imageshack.us/img384/7131/sirjoeysigmedij1.gif

jimFPU
07-15-2008, 07:34 PM
LOL! Cash!!

Pagan Wizard
07-21-2008, 12:30 AM
I've been checking out those Crystalyte hub motors myself & I'm really "chomping at the bit" to get one, but it's a little out of my reach monetarily, just yet. Their new batteries sound awesome, but at over a grand, YIKES, that'll put a dent in the ol' budget!



http://search.ebay.com/search/search.dll?from=R40&_trksid=m37&satitle=Crystalyte+hub+motors+&category0=