My EEB Commuter

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kingjamez   100 W

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Posts: 148
Joined: Mar 22 2009 9:38pm
Location: Washington D.C.

My EEB Commuter

Post by kingjamez » May 16 2017 1:51pm

I just got done with my build of an electric moped. It's not really a bicycle, the pedals are only there for backup in case something goes wrong.
Specs:
EEB steel frame with moto seat
QS205V3 3.5T Hubmotor
17" Moped wheel front and back
Michelin Gazelle 2.75" tires
Hubsinks and Ferrofluid
Mobipus 72220 FOC controller
Right side half twist throttle, left side thumb variable regen brake
Rockshox Boxxer Front Shock
DNM AO42AR 200mm Rear Shock
20S 20AH (10x4s Packs) of HK Turnigy Professional Graphene
Shimano SLX Hydraulic brakes with 203mm rotors
Cycle Satiator with wall and J1772 power inputs
Arduino control for controller state and NeoPixels for brake lights and turn signals

Top Speed is 60+mph with no field weakening enabled. Could go faster, but have no desire to. I commute on a 4 lane highway with 50mph speed limit and don't feel the need to go faster. Most of it is at 30 mph anyway due to traffic.

Range obviously varies with speed. All I know now is that I use about 1/4 of the battery on one way of my 8 mile commute every day.
IMG_3447.JPG
Last edited by kingjamez on May 16 2017 9:07pm, edited 1 time in total.

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Sean9002   1 kW

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Location: Australia

Re: My EEB Commuter

Post by Sean9002 » May 16 2017 5:20pm

Cool build!
Ive always been curious about the angle of the moto seat on these frames. Is it as steep as it looks, or is there alot of suspension sag in suspension?
OSET 20+ - Custom frame and swingarm, Motorims - 66V
Ruff Cycles Porucho - MXUS 3000w - whitewalls - Gloss black/Pearl blue/copper leaf - custom tanks - bobber saddle
Giant Glory 00 - Clyte X5404 - Hubsinks - 18FET Sinewave
Fuji Nevada S - MXUS 35mm- Hubsinks - 12FET Sinewave
39inch longboard Dual 50mm, 12s lipo

kingjamez   100 W

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Posts: 148
Joined: Mar 22 2009 9:38pm
Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 16 2017 6:42pm

I was worried about the angle as well. I've found that in practice, it's not a problem. I don't slide down while riding and generally am sitting at the very back of the seat. It works very well and is more comfortable than the any bike seat I tried in the mount that comes stock on the EEB frame.

-Jim

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Newagebike   10 W

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Location: Davie, Florida, USA

Re: My EEB Commuter

Post by Newagebike » May 16 2017 7:45pm

Nice build! Question why the derailer, I thought the QS 205 H50 can only have one socket?

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kingjamez   100 W

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Posts: 148
Joined: Mar 22 2009 9:38pm
Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 16 2017 8:07pm

Newagebike wrote:Nice build! Question why the derailer, I thought the QS 205 H50 can only have one socket?

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I'm not sure I need one. I'm still experimenting there. I see a lot of people using one as a chain tensioner so I started out that way.

-Jim

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Newagebike   10 W

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Location: Davie, Florida, USA

Re: My EEB Commuter

Post by Newagebike » May 16 2017 9:04pm

What batteries did you use?

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litespeed   100 kW

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Location: St. Peters, Missouri

Re: My EEB Commuter

Post by litespeed » May 16 2017 9:07pm

Looks good. How many amps can you pull from a hard start?

Tom
I'm married so you know I'm no stranger to pain!

kingjamez   100 W

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Posts: 148
Joined: Mar 22 2009 9:38pm
Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 16 2017 9:23pm

The controller says that it's max amperagE delivered so far is 172.8 amps. That's likely from a max acceleration start from zero.

Batteries are listed in the OP. Don't have much history on them yet but they are working well so far.

The reasom for the chain tensioner is because of the vertical drop outs, you can't put the chain on if it's the right length because it won't stretch to allow the greater distance required by the vertical drop outs.

-Jim

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Sean9002   1 kW

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Re: My EEB Commuter

Post by Sean9002 » May 16 2017 9:53pm

kingjamez wrote:I was worried about the angle as well. I've found that in practice, it's not a problem. I don't slide down while riding and generally am sitting at the very back of the seat. It works very well and is more comfortable than the any bike seat I tried in the mount that comes stock on the EEB frame.

-Jim
How tall are you jim, im kind of lanky, I'd be worried the KLX110 seat would be too short. I have one on my OSET and it could do with being a bit longer.
OSET 20+ - Custom frame and swingarm, Motorims - 66V
Ruff Cycles Porucho - MXUS 3000w - whitewalls - Gloss black/Pearl blue/copper leaf - custom tanks - bobber saddle
Giant Glory 00 - Clyte X5404 - Hubsinks - 18FET Sinewave
Fuji Nevada S - MXUS 35mm- Hubsinks - 12FET Sinewave
39inch longboard Dual 50mm, 12s lipo

litespeed   100 kW

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Location: St. Peters, Missouri

Re: My EEB Commuter

Post by litespeed » May 17 2017 6:27am

kingjamez wrote:The controller says that it's max amperagE delivered so far is 172.8 amps. That's likely from a max acceleration start from zero.

Batteries are listed in the OP. Don't have much history on them yet but they are working well so far.

The reasom for the chain tensioner is because of the vertical drop outs, you can't put the chain on if it's the right length because it won't stretch to allow the greater distance required by the vertical drop outs.

-Jim
I have the same motor and wheel with a MaxE. At full program it will let me pull 196 amps on 20s (I do get some voltage sag so that might be the reason for higher amps?) and like you hit 60 with no field weakining ( I think I recently wrote 70 but I think it was all the narcotics I've been taking for my rotator cuff surgery!). The reason I ask is I love everything about the MaxE except the off line line lack of hit. I actually wanted the 4T but I got the 3.5T dirt cheap. I did have the option of the 5T but was worried about max amps....this place has turned me into some kind of a "amp head!"

I did the same for a chain tensioner....other than here no one will notice. Ask me how I know.

Your bike looks excellent.

Tom
I'm married so you know I'm no stranger to pain!

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Newagebike   10 W

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Location: Davie, Florida, USA

Re: My EEB Commuter

Post by Newagebike » May 17 2017 8:43am

You can allows use a chain splitter and install a master link this way you do not need the tensioner.

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kingjamez   100 W

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Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 17 2017 8:53am

Sean9002 wrote:
kingjamez wrote:I was worried about the angle as well. I've found that in practice, it's not a problem. I don't slide down while riding and generally am sitting at the very back of the seat. It works very well and is more comfortable than the any bike seat I tried in the mount that comes stock on the EEB frame.

-Jim
How tall are you jim, im kind of lanky, I'd be worried the KLX110 seat would be too short. I have one on my OSET and it could do with being a bit longer.
I'm pretty short: 170cm. I'm just on my tip-toes when stopped at a stop light. My friend who rode it and is ~180cm thought it ok for him. I have another set of holes to move the rear shock up or down, so there is some adjustment for seat height.

-Jim

kingjamez   100 W

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Posts: 148
Joined: Mar 22 2009 9:38pm
Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 17 2017 8:56am

litespeed wrote:
I have the same motor and wheel with a MaxE. At full program it will let me pull 196 amps on 20s (I do get some voltage sag so that might be the reason for higher amps?) and like you hit 60 with no field weakining ( I think I recently wrote 70 but I think it was all the narcotics I've been taking for my rotator cuff surgery!). The reason I ask is I love everything about the MaxE except the off line line lack of hit.

Your bike looks excellent.

Tom
Thanks Tom!

I've never (and don't plan to) charged my batteries beyond 4.05V/Cell. If I were to charge all the way up to the full pack voltage, I'd bet my max amp draw would correspondingly increase as well. I've got no such complaints about the Mobipus, it's brutal off the line and I have to work to keep the front wheel down. The throttle is nearly infinitely configurable on the Mobipus, almost too much so... so many settings that I'll probably never try them all since it just works so well as-is.

-Jim
Last edited by kingjamez on May 17 2017 8:58am, edited 1 time in total.

kingjamez   100 W

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Posts: 148
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Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 17 2017 8:57am

Newagebike wrote:You can allows use a chain splitter and install a master link this way you do not need the tensioner.

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Yes, that would work, but if you ever had to remove the rear wheel you'd need the chain splitter again because of the vertical drop out.

-Jim

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Newagebike   10 W

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Re: My EEB Commuter

Post by Newagebike » May 17 2017 10:17am

Did you install the Ferro Fluid or was it in the motor already?

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kingjamez   100 W

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Re: My EEB Commuter

Post by kingjamez » May 17 2017 10:24am

Newagebike wrote:Did you install the Ferro Fluid or was it in the motor already?

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I put the Ferrofluid in. It was super simple. I just drilled a small hole in the outside of the motor casing, being careful not to drill into the windings. I then put all 10ml of FF in and used some black silicon to reseal the hole.

-Jim

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Newagebike   10 W

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Re: My EEB Commuter

Post by Newagebike » May 17 2017 10:42am

I have seen videos of people taking apart the motor to put it in I am wondering about the pros and cons of these 2 ways?

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kingjamez   100 W

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Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 17 2017 11:32am

Newagebike wrote:I have seen videos of people taking apart the motor to put it in I am wondering about the pros and cons of these 2 ways?

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On the first motor that I installed ferrofluid, I drilled the hole to inject the ferrofluid. I then ran it for a while and took the motor apart. The ferrofluid was evenly distributed among the magnets just like it should be. With that result, I really don't see the point of taking the motor apart just to insert the FF.

-Jim

ninepointeight   1 W

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Re: My EEB Commuter

Post by ninepointeight » May 17 2017 1:47pm

kingjamez wrote:
Newagebike wrote:I have seen videos of people taking apart the motor to put it in I am wondering about the pros and cons of these 2 ways?

Sent from my SM-N900T using Tapatalk
On the first motor that I installed ferrofluid, I drilled the hole to inject the ferrofluid. I then ran it for a while and took the motor apart. The ferrofluid was evenly distributed among the magnets just like it should be. With that result, I really don't see the point of taking the motor apart just to insert the FF.

-Jim
I am curious if anyone else can weigh in on this. I wouldn't think drilling even a small hole in the side cover while it is installed is a good idea. I would be worried about metal shavings grinding between the stator and the magnets. Perhaps a punched hole would be more ideal?

kingjamez   100 W

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Joined: Mar 22 2009 9:38pm
Location: Washington D.C.

Re: My EEB Commuter

Post by kingjamez » May 17 2017 2:27pm

Bike_Charging.jpg
Charging today at the local free EV charging spot in the garage at work.


-Jim

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Newagebike   10 W

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Re: My EEB Commuter

Post by Newagebike » May 17 2017 4:28pm

Only one sticker on one side that is fashion for sure ;-)

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MoonBassMan   1 W

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Re: My EEB Commuter

Post by MoonBassMan » Jun 09 2017 12:25pm

Where did you get your Mobipus? I've been looking for one!

ElectricOnly6756   1 µW

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Re: My EEB Commuter

Post by ElectricOnly6756 » Aug 07 2017 6:15pm

I'm interested how you managed to set up your bike to charge from a car charging station. What is your setup?

John in CR   100 GW

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Re: My EEB Commuter

Post by John in CR » Aug 09 2017 9:59pm

How do those mirrors work for you? I've always gone without bike mirrors b/c they vibrate too much to be useful, but if I could get useful mirrors (like I use constantly while driving a car) that would be great.

Also, what kind of wh/km or wh/mile do you get?

litespeed   100 kW

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Re: My EEB Commuter

Post by litespeed » Aug 09 2017 10:24pm

John,

I have basically the exact same bike and mirrycle's also. They are awesome. Vibration on my bike is near non exsistant. They are super adjustable and very solid. https://www.modernbike.com/product-2041 ... C9EALw_wcB
I have them on both sides and can easily fold them in for going through the woods. Get out of the woods and fold them back out and go or on the go! I've only gone 60 mph a few times but I can tell you they do great at that speed and everything below. I have the same 3.5T QS motor and a MaxE which should get me into the 70's but haven't ever tried going that fast yet.

You can tell us how they do at 100 when you get them.

Tom

Kingjamez I didn't mean to steal your thunder! Apologies if I did and will delete.
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I'm married so you know I'm no stranger to pain!

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