"Da bomb" cargo bike + Transmag 3kW / MAC 2kW / HS3548

[MattyCiii]

1) Custom extended length pannier/bucket system.. this will be hardware store-d together and i am not sure how i'm going to do it.

After readin this thread I have this mental image of the wooden sides of an old Radio Flyer wagon as your rear battery rack/ pannier system...

[neptronix]

There is no space to fit a motor or any batteries on either of those frames. You also can't install a rear rack on them, so you have a seat post rack for your batteries, and maybe you can do the oatnet front fork idea. I am going to ultimately have 50-100 pounds of batteries, which would not only look extremely weird on a downhill bike hanging off the back and front, but also probably crack the seat post and break the forks as well. You also end up with a bunch of strange shit hanging off a bike and it looks sorta like an illegal motorcycle, not really like a bike.

I do not want to have my legs next door to a 40 pitch chain spinning at thousands of RPM. Did you look at how wide that motor is? i couldn't even pedal if i put it in the triangle. If it put it below the triangle, the chain line of the motor would prevent pedaling as well.

Using my idea, the bike looks like a bike. You can't see the motor underneath the panniers. And a rear rack on a cargo bike does not look unnatural.

Also, welding all the bits and pieces to aluminum? I do not feel confident in that.

Having a high power, high battery capacity, clean looking, fast, and nearly indestructible steel bike is the whole point of this build.

[neptronix]

Well, the xtracycle is not going to work out. I put a review in an external post here:

http://endless-sphere.com/forums/viewtopic.php?f=4&t=40519

I believe it would not be very flexy if the attachment hardware was replaced. Do i want to put money and time into making it mount to my bike more solidly? not really!

Haven't found a donor rear sus. just yet, but i have a few other bike shops to harass...

[neptronix]

So i've got the motor side sprocket, the 40 pitch chain ( WOW it's huge.. ) and the wheel side sprocket from king sales and service....

The sprocket is really nice but they screwed up.
I told them 40 pitch, and leave as much meat on the gears as possible ( since the owner said he usually grinds a bit off to help with chain offset issues )



The tooth pattern / spacing is correct here but the width looks just a bit wider than a BMX chain. It is half the width of my 12T sprocket.

Mounting it to the hub, i realized something else instantly.
If run a as fat of a tire as i'm thinking ( 2.5" pirelli ).. then the chain is going to rub against the tire.
It's a good thing i didn't get a wheel built yet because it looks like i'm gonna have to run a 150mm rear.
..which has really screwed up my frame options bad...

Back to the drawing board.

[nechaus]

thats why i had to make my shocking looking extended rear forks...

you could do that since your using steel, be an even longer tail bike.
You can make it fit for sure!!

[neptronix]

Sure, one way or another.

Y'all are right. This is a pain in the ass and you get to watch me stumble the entire way through, should be a fun thread to watch . I'm now growing accustomed to being looked at like i'm a retard by some local shops.

But this painful experimentation phase is exactly how i learned how to do computer repair as a youngster ( age 11-13 ) & ended up having a career in IT for >10 years because of it.

Maybe someone can learn from my mistakes along the way. Sorry if it sounds like i am not listening to you guys. I just have a specific vision i'm aiming for, and it is easier to do things my way than to move in another direction most of the time. I also ordered a lot of stuff beforehand and thought this was going to go much smoother than the 'pie build.

[neptronix]

Picked one of these up for $75 ( used ) just for kicks..



http://www.digglerstore.com/products/dirt-dawg.html

16" wheels means 48mph at ~1000rpm. Many times easier to gear than regular bicycle wheels.

Now if i can build up a bicycle front 100-110mm disc brake wheel for the rear, and plug a sprocket into it, i'm golden.
The downside is that i won't be able to run a very wide tire on such a narrow hub.

In the meantime, this project will basically be on hold until i get my hands on a yuba mundo or can get a rear suspension doohickey setup, as in the original plan.

I gotta get my e-grin back..

[neptronix]

http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=150845070433

OOhh, look what the cat just dragged in
Chain line and frame design consideration issues? what are those?

This should be an interesting experiment for sure.

[voicecoils]

What a sweet frame to build on!

[Drunkskunk]

Daaaaamn. I think those are $1500 frames new and they started making them. That should make a kick a$$ ride

[neptronix]

The full purchase cost is unfortunate. It is usually my goal to use budget branded components, test them out, and highlight the good/bad in them for the benefit of the public here on ES. But this is definitely an exception. I just need to get some motors hooked up, tested, and don't wanna sit around and bitch with chainlines etc! What a perfect design it is for that purpose!

In this case it cost a lot less than the Yuba. These are made in small quantity by hand. I will be offering some feedback to the company in terms of making a better chain driven eBike frame ( if that is their idea ) after i get it. Maybe there is something here, especially if these could get mass produced.

[spinningmagnets]

Thats an awesome frame that Design Logic is making. I don't know if Yuba is selling the bare Mundo frame anymore, they no longer list it on their website (it used to be $600 for no forks, BB, wheels, etc). For $400 including shipping, great deal! I like the motor, and also the weatherpack connectors (viewtopic.php?f=16&t=2767#p588505)

http://www.designlogicbikes.com/

[neptronix]

So, dudes.

I am about to sign a lease on a place with my own garage attached out near Salt Lake City

I am rather excited because i want to start welding, grinding, cutting, and putting together some very cool, very custom stuff.. no more worries about making noise etc.

I should have this frame in my grubby lil' hands in a week and a half if all things work out.. you will hear more from me later ..

[veloman]

Design Logic listed their frames for sale on this site a while ago, I don't know why I didn't suggest it earlier. Seems perfect for your build.

[neptronix]

Design Logic listed their frames for sale on this site a while ago, I don't know why I didn't suggest it earlier. Seems perfect for your build.

I don't know why i didn't think of it earlier either .. I guess the reality of chain drive never caught on to me until i had all the bits and pieces in my hands. The big advantage of this frame is the lack of chainline issues.

So anyway, i am officially landed in the Salt Lake City area. We got a place with a big garage for me to weld and grind on stuff in, and we're located in a quiet, mostly mormon 'burb. Only problem we have here is kid noise and the occasional barking dog.. lol. Everyone's so nice out here, it's weird.

( in other words, i'm happy here, i finally have a space to do interesting stuff with ebikes, so expect interesting things in the future.. )

[veloman]

How are the roads for biking, any better?

Too bad the Pikes Peak thing didn't work out, but at least FFR trikes and a liquid cooled 9c handily beat Optibike.

[neptronix]

Dude, the roads are way better. There are actually some bike lanes, for one, which go very long distances.
Sidewalk is pretty consistent and even where there are not bike lanes. Or there will be an alternate road to take.
The mayor is a mountain biking enthusiast who's been dumping amazing amounts of cash into making the area more bike friendly, so that's a plus

There are bike paths that seem pretty extensive going off my reading, but i haven't found those yet.
From my 'burb, to salt lake city, there is a frontage road for slower moving vehicles like mopeds and bikes.

It's not bike paradise, but it's a huge improvement over Colorado.

How are the roads for biking, any better?

Too bad the Pikes Peak thing didn't work out, but at least FFR trikes and a liquid cooled 9c handily beat Optibike.

[neptronix]

All i have to say is... **** yes.
This frame is stupidly overbuilt, 16lbs of cromo and i can't get any part of it to flex. I LIKE IT
But i do not have wheels or a fork for it yet

I am still not totally unpacked, but i had to unbox it and be in awe of the new shiny thing

More on this later.

[neptronix]

Hmm.. similarities to the actual killacycle frame..

[neptronix]

Well, another project, another obstacle course.

Kings sales & service:
http://kingssalesandservice.com/

Did not answer my multiple emails ( it's been over a month ) pleading for a return of the 39t sprocket i ordered.
I called twice, and the phone was not answered, nor could it accept a voice mail.

Nobody called me back today, so i called a 3rd time later on, and finally got someone on the phone.
The response i get is that having half the meat milled off the sprocket is not a problem and that i'm worrying about nothing.
Then the guy continues to ramble on and on about various shit until i interrupt him with further inquiry.. then rambling some more.. yeah, i get it. I'm not getting a return and you want to waste my time. Thanks a lot.

I am still trying to get a rear wheel together. I have posted a 'wanted' ad for a broken 20"/24" hub motor wheel in a few places.. no response.. cmon, ES.. i know you got some melted hub motor wheels somewhere

Can't find anybody out here in Utah who can cut spokes other than 14 gauge, either..

So this shit is still on hold

[Harold in CR]

I've been wondering why a simple die could not cut threads on spokes ? Is it some special thread, or, no one wants to take the time ??

[neptronix]

I've been wondering why a simple die could not cut threads on spokes ? Is it some special thread, or, no one wants to take the time ??

*shrug* bike shops appear incapable of doing it. I think motorcycle shops may just tell you to buy a new wheel.
Is there even a die available for something like that?

I cannot find a single company that sells 20" or 24" rear wheels with stronger than normal spokes.
And you can forget finding a company that sells a 20" or 24" rear wheel with disc brake holes. Even the recumbent shops seem clueless... amazingly enough!

I almost want to buy a brand new hub motor wheel, then removing the stator and neo magnets. It might literally be the cheapest option, lol.

[Harold in CR]

Do you have the spoke you need shortened ? Go to the hardware store and see if you can find the correct die that will screw on the spoke thread ??

[neptronix]

No i don't. I have not invested in them because i am unsure of what hub to use, still.
Or whether i just go with a prebuilt bike hub wheel and do the stator removal bit.

[toolman2]

Do you have the spoke you need shortened ? Go to the hardware store and see if you can find the correct die that will screw on the spoke thread ??

no good im afraid, spokes have thier own thread, its rolled on with a special spoke rolling tool, so its kinda bigger od than the non threaded part, so dies are not around.