new eZip motor

[latecurtis]

"If you need chain size or tooth count NOT listed below please feel free to call us at 434-971-7924….We can make practically anything!"

I dont know how much they will charge. I am still keeping options for other sources just in case. I will go with the best price including shipping. Please post links for any other possible sources. Or any 110 tooth #25 sprockets if they exist. I have decided not to use the 9 tooth motor sprocket. Unless someone gives me a good reason why I should. Has anyone ever used a 9 tooth? Please let me know. There is nothing more I can do until I get money and aquire a good 20" wheel for a new sprocket. Thanks

LC out.

 

[latecurtis]

Perhaps if you got a bike that the kit you were GIVEN would fit on you'd like it a lot.

I do. It is a Clear Creek Shwinn. The best bike I ever rode. It is powered with 44.4V Lipo. A custom set up I created with 4 - 6s packs inside a Lipo bag which is a sentry cash box with an ice cube tray on top. Custom bolts for terminals and the packs are combined. It is easy as pie to hook up and charge and I rarely get a spark by using a pre hook up cable with two 10 ohm resisters in series. It goes about 27mph and about 10 miles. I run it about 7 miles and then re charge. I could probably run it at 60V and get 35mph out of it.

It is a pain in the pain in the ass to get up and down my stairs though. That is why I am building the 20" bike. That and I just love building e bikes. I will get the 20" build done this summer. There is no doubt now that I know where to get a 110 tooth sprocket. Thanks for posting and I hope I answered your question.


LC out

 

[latecurtis]

Why do I see blue lines for links under ice cube tray and easy. They are links to advertisements. Someone better do something. It looks like this forum is being hacked!!!

 

[latecurtis]

I don't see it here at the library. It must have been my brothers PC. Too bad for him. It looks like it is time to format his hard drive and reinstall the OS. That is what I do when I get Hijacked or a Virus. It has always worked for me. Windows 7 is the best OS I think. I hope they will continue to support it.

Getting a good rear wheel for the 110 tooth sprocket is what is holding me up at this point. I don't have any money now. That is also holding up this build. I am down town with the Schwinn and running the Lipos today. I may call thet number today however just to price that custom sprocket.

My question for the day is. Has anyone ever used a 9 tooth #25 motor sprocket. Also what is a pitch.

what pitch is your 9t sprocket? the reason i ask is: any 9t sprocket is going to be HORIBLY inefficent, loud & wearing out a chain & itself in less time than you can imagine

That is what Thud asked me. I am wanting to know as I already have a 9 tooth I ordered and if it is a lot of money to order the custom sprocket then I could still order a second 9 tooth and the 90 tooth #25. Please let me know if anyone has used a 9 tooth #25. Also if anyone has any other links for custom sprockets it could save me some money. Thanks.

LC out.

 

[mark5]

My question for the day is. Has anyone ever used a 9 tooth #25 motor sprocket. Also what is a pitch.

Go to google.com and type in the search box "what is bicycle chain pitch"

also:

Chains and sprockets by spinningmagnets
http://endless-sphere.com/forums/viewtopic.php?f=16&t=46630

where pitch is seen in the second picture (drawing).

and:

Re: Chains and sprockets by spinningmagnets
#25 Chain
http://endless-sphere.com/forums/viewtopic.php?f=16&t=46630#p694039

 

[latecurtis]

Thanks for that Mark. It helped me out. I added you to my friends list.

LC out.

 

[DrkAngel]

20 mph with good dual brake might be able to stop you in 20 feet.

A 20 incher, grossly overloaded, with a high center of gravity and rear brakes only ... might take closer to 60 feet to stop!

Possible improvements:
Get thick soled boots and drag your feet to help stop?;
Heavy boots - jamb boot into fork against tire as makeshift "brake shoe";
Abandon ship - 60lb bike hitting pedestrian is safer than 300lb bike and rider hitting pedestrian!

 

[latecurtis]

DA. Really ?! :?

I cant even ride the bike the rim is so bent. The chain pops off when I try. The bike needs a good straight back 20" rim for a wheel sprocket.
The bike also needs a decent back rim for a pedal sprocket. I have neither.

To make matters worse The only place I know of to get one cheap is the electric city bike rescue which is only open on Thursdays.
Next Thursday is the 30th. I wont have any money until the 31st when my ol lady gets her SSI. Or the second when I get my temporary disability.
Aug 6 is the soonest I will even be able to get the back 20" rims I will need.

I also will have to order a sprocket pulling tool and a custom 110 tooth wheel sprocket and a master link for the #25 chain. I cant even do that until after I get the two back rims because there are at least 4 different pulling tools for 20" rims. I cant order a custom 110 tooth sprocket until I get the wheel either as I wont have the specifications to order it.

I don't see how brakes even matter at this time as the bike is sitting in a closet. Brakes are the least of my worries. I may buy a 20" bike at the bike shop that would not work on the bike. They have them for around $25 and the bike has to be road worthy for them to sell it. They will also know if the brakes are compatible with the 20" Diamond Back I have. That would save me six days and I could order my 110 tooth wheel sprocket and the pulling tool also next Friday or Saturday.

As far as a high center of gravity I really don't understand. A 20" bike sits a lot lower than a 26" mountain bike. The SLAs in a rear basket on a 26" mountain bike is no different than the SLAs in the small sawed off basket behind the seat on the 20" bike. Brakes on the back will be a simple job. I also plan on custom front brakes and Ricky next door said he would do them for $20. He has welding torches if I need custom brackets. Thanks for your concern DA but I really don't get what your saying. Please clear that up if you can.

If it is a serious safety issue I guess I could spend the extra money for disk brakes on the rear. I am not sure it is even possible to put disk on the front with that setup. Disk would be a good upgrade though when I get the 36V 1,580W AmpFlow motor for 35mph. I don't see why I would need them for 23mph though with the small dual motors. Regular brakes should be fine for now. If I go that route I will need two 20" back rims set up for disk as cheap as possible. If you have links for them please post them before next Friday so I can order them. I will go online and search now. Thanks.

LC out.

 

[latecurtis]

There is one other thing I was thinking. The reason for the 110 tooth sprocket was because I was going to use my 36V controller to run the motors and that would increase the RPMs from 2800 to 4200.

I have both 24V controllers that came with the motors. I did not test them. Running a single throttle off of two controllers sounds unlikely however if I were to order a 500W 24V brushed controller the rpm would be 2800 and according to your sprocket calculator good for 23mph with a 79.2 tooth wheel sprocket.

Total wattage would be 560W. Even if it did not go 23mph it should get close to 20mph. Also the motors would last longer and run better at 24V as that is what they are rated for. It would probably be about the same price or cheaper than a 110 tooth custom sprocket and I could run the 80 tooth wheel sprocket I have on there now. Please let me know what you think DA and any links for cheap 20" disk brake wheels. $44 each was the cheapest I could find on e bay. Thanks.

LC out.

 

[latecurtis]

http://www.ebay.com/itm/24V-500W-8-Head-Scooter-Brushed-Motor-Speed-Controller-/231523238985?hash=item35e7dc4449&vxp=mtr

Total wattage from both motors is 560W. Will this 500W controller do the trick. Please let me know. It will be much cheaper than a custom sprocket. Will I need a different thumb throttle or will the 36V thumb throttle I got now work?

http://www.ebay.com/itm/24V-Ground-Force-Razor-Thumb-Throttle-with-LED-indicator-4wires-E200-E300-/361301835334?pt=LH_DefaultDomain_0&hash=item541f447e46

Thanks.

LC out.

 

[latecurtis]

http://www.ebay.com/itm/24v-36v-Electric-thumb-Throttle-3-wire-for-Electric-Scooter-fit-7-8-in-handlebar-/111592632937?pt=LH_DefaultDomain_0&hash=item19fb707269

This one has three wires which is what the illustration of the controller has. It will also work if I upgrade to the 36V AmpFlow motor.

 

[DrkAngel]

I am going to order a 24V 500W brushed controller for the two 280W brushed MY1016 - b razor scooter motors. It should still reach about 20mph at 560W total and I can use the 80 tooth wheel sprocket I have because the RPMs of the motors will be 2,800 instead of 4,200. They should also last longer as 24V is what the motors are rated for.

24V x 28A controller = 672 input watts for motors 560 output watts looks reasonable for rated watts at top speed.
24V x ~40A controller recommended for better low end performance.

 

[DAND214]

Hey LC, have you done the pre run of the Diamondback as per DA said?
Take it to a medium hill and ride down it, just to see what 20+ mph will feel like on it.
My most stable 26" with full suspension is still not what I want to ride at anything above 30mph. Yeah it's got new good tires and tubes, fresh bearings, good Shimano hydro disc brakes and it can do more than what I said but I don't want to kill myself and miss all you great guys and gals.

It's fun to build and rebuild as needed but you need to know when to pull back on the reins. Had a dozen now down to half of them. And maybe 4 get used regularly

I read all your posts even if they are just talk and no action. So keep pluggin along and do what you can and the most important thing to have is GOOD BRAKES.

Dan

 

[latecurtis]

24V x 28A controller = 672 input watts for motors 560 output watts looks reasonable for rated watts at top speed.
24V x ~40A controller recommended for better low end performance.

I have both controllers that came with the motors I got out of the razor scooters. It says right on them 24V bicycle controller 30A.
I even have the throttle which is a twist and like a kids toy it don't twist that much. It is a four wire throttle also so I don't know for sure if any 4 wire 24V thumb throttle would work.

I also am not sure about 24V either. I should be able to get 20mph out of it but my range will be compromised. The SLAs are at least if not over the half way point of their life span and only running two for 24Ah@ 24V at 10mph average speed does not sound good compared to 36Ah and 36V @ 10mph average speed.

That is why 24V is a bad idea. I also have four 5" DC cooling fans. With the 80 tooth wheel sprocket and 11 tooth motor sprocket it is geared for 30+ mph which is about 5 or 6mph more than the motors are capable of doing but if I run two fans all would need is one more 12V 12Ah like the three I have and not only will it run two fans I will have 48V to run the Schwinn with the hub motor. That will get me up to 30mph with that.

I am sick of ordering things I don't need. I wasted about $20 on that 62 tooth #25 sprocket for the MY1020 motor which is shot and at least $15 on that 9 tooth #25 motor sprocket I will never use.
That money could have bought the sprocket pulling tool that I need and a god 20" back rim which I need two of.

I am not ordering any 90 tooth or 110 tooth custom sprockets for 23mph@4200rpm. I am simply ordering one 12V - 12Ah SLA and the sprocket pulling tool I need and spending $25 on a good 20" bike from the bike shop that has good brakes I can use and $10 for a good back pedal wheel at the bike club. I should get at least 25mph out of it @36V with two cooling fans.

Thanks. LC out.

 

[latecurtis]

http://endless-sphere.com/forums/download/file.php?id=169252

I was looking at an 800W 36V My1020 unite motor for $60 on ebay.
It is 2800rpm and would do 27mph with that 62 tooth sprocket I have.

I may order the motor to replace the dual motor set up if one or both motors fail@36V.

My question is will that sprocket fit on a 20" wheel. It don't look like it will fit a freewheel. What type of wheel will it fit on. Please let me know. Thanks.

LC out.

 

[latecurtis]

If I can get the wheel straightened out so the chain stays on and get it running at 24V for now I could order two new 12V 12Ah to run it.

Then I would have a total of five 12V 12Ah SLAs for 60V on the Schwinn. Will the controller for the hub motor handle 60V?

If so I can finally blow past those pesky little weed whacker motors hooked up to mountain bikes that are rolling around here

 

[mark5]

http://endless-sphere.com/forums/download/file.php?id=169252

I was looking at an 800W 36V My1020 unite motor for $60 on ebay.
It is 2800rpm and would do 27mph with that 62 tooth sprocket I have.

I may order the motor to replace the dual motor set up if one or both motors fail@36V.

My question is will that sprocket fit on a 20" wheel. It don't look like it will fit a freewheel. What type of wheel will it fit on. Please let me know. Thanks.

LC out.

What you can do to figure it out yourself is go to one of those scooter sprocket pages that you like to look at. This one, for instance. Then look there for sprockets that also have a 3-bolt pattern and read about what they're for.

 

[DAND214]

LATECURTIS wrote:
Then I would have a total of five 12V 12Ah SLAs for 60V on the Schwinn. Will the controller for the hub motor handle 60V?

If they are dead it will but not if you charge them
So the answer is, NO it will blow the caps and fets and maybe more.

Dan

 

[latecurtis]

http://www.ebay.com/itm/60V-1500W-Electric-Bicycle-Brushless-Speed-Motor-Controller-For-E-bike-Scooter-/181128591528?pt=LH_DefaultDomain_0&hash=item2a2c1af8a8

Will that work for the Hub motor?

 

[latecurtis]

http://www.amazon.com/AmpFlow-A28-400-Brushed-Electric-Motor/dp/B00AG21RUE/ref=sr_1_8?ie=UTF8&qid=1438201992&sr=8-8&keywords=AmpFlow

This is the motor I really want for the 20" bike

It would do 45mph with a 70 tooth sprocket on a 20" wheel with the 11 tooth motor sprocket

I wish I had money like that. Thanks

LC out.

 

[DAND214]

Hey LC,
the controller will work but you need 60v nominal. You can't run the LiPo 12s 44.4v on it. 5 SLA is 60v nominal but why add 50 lbs of lead!
As DA said, add the batteries and find a hill and see how fast it will go, then see how fast you can stop????? You don't need the motor for that test!.
You need to get a speedo to see how fast you go on the Schwinn, that might give you an idea what 30mph might be. Then think how much faster it will feel on the 20" bike. OH SH*T another rock oh no that was a pothole, this is gonna hurt when I land

Dan

 

[DrkAngel]

"Maximum power: 3370 Watts, (4.5 horsepower); Maximum stall torque: 26 Nm, (3720 oz-in.)
Peak efficiency at 24V: 83% at 51 Amps and 4500 RPM
Power and torque at peak efficiency: 1040 Watts" = 213w heat

Sounds impressive ... until you actually consider ...
"Maximum power: 3370 Watts" = ~7000w input
About 3600w damaging heat = 3 x 1200w electric heaters going full blast inside something the size of a fat beer can
and no ventilation or heat vanes!

Yeah ... Looks to be great ... till you cook it on the 1st hill ... ?

Don't forget the 300 Amp controller required to hit 3370w output!
Maybe $500-$600?

You could have a $1000 bonfire! :lol:

 

[DrkAngel]

You could have a $1000 bonfire! :lol:

Oops!
Forgot about the batteries ...
If you wanna pull 300Amps from SLA for even a couple minutes you're gonna need over a hundred pounds of lead.
Including rider, that's puttin' near 400 lb on a bike designed for a 90 lb kid ...

 

[Skalabala]

http://www.amazon.com/AmpFlow-A28-400-Brushed-Electric-Motor/dp/B00AG21RUE/ref=sr_1_8?ie=UTF8&qid=1438201992&sr=8-8&keywords=AmpFlow

This is the motor I really want for the 20" bike

It would do 45mph with a 70 tooth sprocket on a 20" wheel with the 11 tooth motor sprocket

I wish I had money like that. Thanks

LC out.

Looks like a brushed motor?

 

[DAND214]

http://www.amazon.com/AmpFlow-A28-400-Brushed-Electric-Motor/dp/B00AG21RUE/ref=sr_1_8?ie=UTF8&qid=1438201992&sr=8-8&keywords=AmpFlow

This is the motor I really want for the 20" bike

It would do 45mph with a 70 tooth sprocket on a 20" wheel with the 11 tooth motor sprocket

I wish I had money like that. Thanks

LC out.

Looks like a brushed motor?

You are correct

AmpFlow A28-400 Brushed Electric Motor, 12V, 24V or 36 VDC, 4900 rpm

Dan