E-S Stealth Electric Bike Owners

[dh-paule]

yesterday was "the day", my first visit to dlogic and his legendary workshop

he is a really nice guy that owns a wonderful and clean workshop, equiped with everything you need. And of course I had a look at his raptor e-bike hommage to the stealth bomber. In real it looks simply perfect. An awesome bike he built !!!
Its the bomber for taller guys, a larger frame, a larger battery for longer trips... did I already mention that his raptor is an awesome handmade homebuilt eBike ? Think its (on of) the best homemade eBike ever...

unfortunately it was dark and rainy, so we left the bike inside

 

[dh-paule]

the reason for my visit at the dlogic workshop was my clyte 5405 phenomenon: if the motor is warm/hot and you try to climb a hill with some power, the wheel doesnt move but you can hear that something is moving inside...

So lets open the motor:


at first view everything looks fine (except the smell of the motor) but dlogic told me that these smell is typical for chinese quality

in theory the only source for sound of moving parts inside the motor could be the magnets, but they look fine and stable

so lets do the test with a hammer and move them:


oh really, you could move them out of the motor... seems there is no glue (left) I am surprised that I was able to move the bike only by magnetic adhesive between the magnets and the hub

we removed and cleaned all the magnets, cleaned the hub too and put some glue to the hub. The glue is j.b.weld A strong 2component glue that resists 315C (600F) and has a strength of 4000psi ... this should fix our problem

here we go:


now we left the motor overnight for curing...

the next steps: lacing a 21" rim and install the shinko 241 that has nearly the same size as the original 24x3"


THANK YOU dlogic for your help!

 

[MAFIA]

nice work kleper thanks for sharing also paule how you know the tension of the spoke or you just tighten not to much?or you got a tensiometer

 

[biknut]

Would it be fair so say that the vast majority of Stealth's sold so far are all in Australia?

 

[Kepler]

yesterday was "the day", my first visit to dlogic and his legendary workshop

he is a really nice guy that owns a wonderful and clean workshop, equiped with everything you need. And of course I had a look at his raptor e-bike hommage to the stealth bomber. In real it looks simply perfect. An awesome bike he built !!!
Its the bomber for taller guys, a larger frame, a larger battery for longer trips... did I already mention that his raptor is an awesome handmade homebuilt eBike ? Think its (on of) the best homemade eBike ever...

unfortunately it was dark and rainy, so we left the bike inside

Glad the to hear you hooked up with dlogic, the Man. I would love to checkout his work first hand.

We all knew it was going to be a magnet spning problem with your motor but that problem will certainly be solved now. Worth noting, that Stealth did have a problem with magnets coming loose on motors even though they had clearly specified high temp epoxy with Clydte. Now every motor that comes in gets torn down, the hall inspected to make sure they are the high spec items as specified then go through the task of removing all motor magnets and re glueing with high temp epoxy. What a pain it must be for them to need to do this.

Just another example of Stealth going the extra distance to ensure they are providing the most reliable product they can.

 

[Elliot]

http://www.ebay.com.au/sch/hsboys_cn1/m.html?item=221300736266&rt=nc&_trksid=p2047675.l2562

Clicked report and filed under innapropriate/banned payment method. I have a feeling reporting under fraudulent item would get no action before some poor mug has wired away their cash

edit. 24hr listing of every colour bomber @ $99 plus $200 delivery now gone and seller feedback now at 0.

 

[pendragon8000]

When you parallel 4 cells together they essentially become one cell with 4x the capacity.
If you parallel 2 batteries that have voltages of 4.1 and 4.2v/cell then the voltage will equalize to 4.15v/cell and that will be the value that is displayed. The higher cell instantly starts dumping voltage into the lower cell to equalize the voltages, or self balance if you like. This is the way I like to do it as stronger and weaker cells average out with this self balancing of sorts. The down side is that if a cell does die then it takes it's parallel brothers with it. But the upside is that if a cell doesn't suddenly just drop (which is rare) then the other parallelled cells will keep it topped up.

Yes, your balance charger will see it as one big pack so if one cell is dead, you can easily overcharge the other cells.

Have you seen this happen ? A balance charger shouldn't really be able to overcharge a parallelled group of cells. As above they self equalize so it would only be if one cell suddenly dropped to 1v or something and the others tried to dump current across to equalize them. In this case the balance taps would often sacrificially fry to save you anyway.

just wanted to add something:
In my experiance, I had a dodgee balance lead that Iwas charging through and ended up with a cell group (pair) having low voltage then paralleled into 3 pairs and the balance leads started smoking.
also i have seen my bc168 display ~4.0v for a pair but the individual cells were way off due to a high resistance pin on the balance leads paralleling them and so the cells were coping 8ah total but the one with good a good plug was getting up over ~4.2 and the other was ~3.8 .
so Kepler i see your point. I guess you need to decide where you want higher and lower risk.
sorry for sort of OT.

DH Paul, awsome you got to meet Dlogic. I'm still waiting for him to upload a video of his "robot lawn mower"

 

[dh-paule]

...
DH Paul, awsome you got to meet Dlogic. I'm still waiting for him to upload a video of his "robot lawn mower"

this we have seen and discussed too, dont know how to start the discussion with my wife

 

[Elliot]

...
DH Paul, awsome you got to meet Dlogic. I'm still waiting for him to upload a video of his "robot lawn mower"

this we have seen and discussed too, dont know how to start the discussion with my wife

....and a video of he discussion with your wife too please .

 

[Dlogic]

Hi DH-Paule,

just finished the motor and lacing of your new SM-Pro rim. The original stealth spokes are a tiny bit to long and stick out of the nipples end. I will dremel that of and do the wheel truing next week when back in from working over the weekend.

The original sun ringle mtx 39 rim. Look at those ripped open holes.

 

[biknut]

That wheel looks real nice. Nice and wide too.

 

[MAFIA]

Hi DH-Paule,

just finished the motor and lacing of your new SM-Pro rim. The original stealth spokes are a tiny bit to long and stick out of the nipples end. I will dremel that of and do the wheel truing next week when back in from working over the weekend.

hi Dlogic the original stealth rims are sun ringle mtx 39? i order a few mtx39 rims actually paule order for me what is the right spoke length to use with this rims and stealth original motor ?thanks in advance

 

[Allex]

Nah, the sun ringle are not original rims for the bomber. They look different

 

[Dlogic]

The original spokes fit the sun ringle rims perfectly. Well the length is ok, but due to the wider nipples the original holes have to be drilled to make space. The SM - Pro rim is the better choice.

I just finished truing the rim. The spokes can be tensioned a lot more. Don´t know the exact torque, but they feel so tight that the fear of them loosening up during riding is inexistent.

Now we just have to mount the shinko tire and give it a blast.

 

[MAFIA]

The original spokes fit the sun ringle rims perfectly. Well the length is ok, but due to the wider nipples the original holes have to be drilled to make space. The SM - Pro rim is the better choice.

I just finished truing the rim. The spokes can be tensioned a lot more. Don´t know the exact torque, but they feel so tight that the fear of them loosening up during riding is inexistent.

Now we just have to mount the shinko tire and give it a blast.

thank dlogic do you know the length cause i want to buy new ones thanks also the sm pro are dirtbike rims right? i just have a motor but my rims are crack so i will replace the rims with new spokes

 

[dh-paule]

I just finished truing the rim. The spokes can be tensioned a lot more. Don´t know the exact torque, but they feel so tight that the fear of them loosening up during riding is inexistent.

Now we just have to mount the shinko tire and give it a blast.

thank you !

 

[biknut]

If you're pedaling a bomber without using the motor, how much noise does the V-Boxx make? Is it louder than a derailleur? Assuming you're able to pedal on a flat grade without the motor, because you legs are like tree trunks, what's the highest gear an average person can reasonably use, and what speed would he be able to maintain? Don't exaggerate.

 

[MAFIA]

If you're pedaling a bomber without using the motor, how much noise does the V-Boxx make? Is it louder than a derailleur? Assuming you're able to pedal on a flat grade without the motor, because you legs are like tree trunks, what's the highest gear an average person can reasonably use, and what speed would he be able to maintain? Don't exaggerate.

the vboxx don't makes sounds unless you are pedaling in reverse but the freewheel sounds a little i actually run from behind my friends and they dont hear anything until they see me or use the break is hard to say what speed you will get without the motor cause i thinks it will depend on the person but for me is just difficult the bomber is heavy is like omg you dont want to run out of battery far from home, one day happens to me and i pedal to home and was very hard but that was the first days with my bike and now i like to burst pedaling, i will try tomorrow and check the speed in flat street without the motor

 

[biknut]

If you're pedaling a bomber without using the motor, how much noise does the V-Boxx make? Is it louder than a derailleur? Assuming you're able to pedal on a flat grade without the motor, because you legs are like tree trunks, what's the highest gear an average person can reasonably use, and what speed would he be able to maintain? Don't exaggerate.

the vboxx don't makes sounds unless you are pedaling in reverse but the freewheel sounds a little i actually run from behind my friends and they dont hear anything until they see me or use the break is hard to say what speed you will get without the motor cause i thinks it will depend on the person but for me is just difficult the bomber is heavy is like omg you dont want to run out of battery far from home, one day happens to me and i pedal to home and was very hard but that was the first days with my bike and now i like to burst pedaling, i will try tomorrow and check the speed in flat street without the motor

I was just wondering how it would compare to my moped. It weighs 106 lb, but the pedal just has 1 gear, and it's very low. Full speed pedaling is about 4 mph. I had to pedal it 2 miles home onetime, but it was possible. If it would have had a taller gear I might of been able to do about 6 mph but that's probably about it, and only on a flat grade.

 

[Jolly Jumper]

I was just wondering how it would compare to my moped. It weighs 106 lb, but the pedal just has 1 gear, and it's very low. Full speed pedaling is about 4 mph. I had to pedal it 2 miles home onetime, but it was possible. If it would have had a taller gear I might of been able to do about 6 mph but that's probably about it, and only on a flat grade.

If you need to pedal without motor than build a mid drive e-bike.
They have basically no drag like a DD hub.
Than its depending on how much batterie wight you want to carry and how trained your legs are to archive high speed without motor but having it

 

[MAFIA]

If you're pedaling a bomber without using the motor, how much noise does the V-Boxx make? Is it louder than a derailleur? Assuming you're able to pedal on a flat grade without the motor, because you legs are like tree trunks, what's the highest gear an average person can reasonably use, and what speed would he be able to maintain? Don't exaggerate.

the vboxx don't makes sounds unless you are pedaling in reverse but the freewheel sounds a little i actually run from behind my friends and they dont hear anything until they see me or use the break is hard to say what speed you will get without the motor cause i thinks it will depend on the person but for me is just difficult the bomber is heavy is like omg you dont want to run out of battery far from home, one day happens to me and i pedal to home and was very hard but that was the first days with my bike and now i like to burst pedaling, i will try tomorrow and check the speed in flat street without the motor

I was just wondering how it would compare to my moped. It weighs 106 lb, but the pedal just has 1 gear, and it's very low. Full speed pedaling is about 4 mph. I had to pedal it 2 miles home onetime, but it was possible. If it would have had a taller gear I might of been able to do about 6 mph but that's probably about it, and only on a flat grade.

the stealth bike is going to be very different compared with your moped you will love this machine

 

[Cowardlyduck]

Question for those who know about controllers.
I have an Infineon 3 18Fet. If I set my Regen max Voltage when running the stock Fighter 48V battery to it's max charge of 58.4V I can activate Regen right from when the battery dips below this to 58.3V.
On my LiPo setup however it doesn't quite work like this.
Fully charged my LiPo is 75.5V which is what I set the controller max Regen to. However I can't actually activate Regen until the voltage drops to around 72V. Why is this? Or is there something wrong with my controller?

Cheers

 

[Merlin]

set your Regen Voltage to 76 or 77v
i have the same controller and wondered bout the same thing

 

[biknut]

If you need to pedal without motor than build a mid drive e-bike.
They have basically no drag like a DD hub.
Than its depending on how much batterie wight you want to carry and how trained your legs are to archive high speed without motor but having it

I'm not actually planning to do much solo pedaling. It's just that there will probably be certain instances where I might prefer to pedal a little bit, like on a heavily trafficked city bike trail. That's why I was wondering how noisy the transmission is. Other than that, the only time I would want to rely on pedal power alone is if I had to get the bike home without power. I do realize this bike isn't meant to be a pedal bike par se.

 

[Rix]

Rick I'm running a brand new stock standard pack in the Bomber. I may be out by a kph or 2, maybe the Bomber is around 72 kph...I'm not actually checking it exactly at those speeds Top speed is probably just about the same, in fact I rarely hit top speed on either bike so I fully agree, it's more about the torque. Your 5405 will fly up steep mountain trails. Being a Middleweight & not hitting really steep trails, the 5404 seems fine for me, great torque & sufficient top speed.

Yah, I am hoping for a little more hill climbing ability with the 5405. Dlogic worked over my 5404 for me and its working fantastic. This winter, I got some additional mods going on the Bomber. Between that and me dropping 30 pounds by next spring, will be good to go. Been up in Idaho with my Pops that last 5 days. Climbed some crap in the foothills that was very steep. 5th gear pedal assist and the 5404 just keeps pulling hard. Starting to get lots of of voltage sag even hot off the charger. Keep hitting the LVC (69v) and I never used to do that until about 800-900 watts or so was consumed. But I got about 400 cycles so far on it and I am, needless to say by virtue of my body weight, hard on things.

the next steps: lacing a 21" rim and install the shinko 241 that has nearly the same size as the original 24x3"

Paule, did you mean a 19" rim? A 21" MC rim is way bigger than a 24x3. They are about the size of a 650B or even a 29" MTB tire if sidewall profile is tall.

Kepler, your 20s Lipo set up is great. I though for sure you would have went with a H4065 by now. Should be interesting how your geared hubby holds up. I can't remember, are you running the 10 turn or 12 turn stator? I remember you smoked your 8 turn stator last year.

Update: I just got 3 more rims in. Two 18x1.40 from Holmes Hobbies and a Tagasko 18x1.85. The Holmes Hobbies aluminum 18x1.4 Moped rims are the same thickness and drill hole angles as the what I have on my 17x1.4 and 19x1.4 Prowheel Racing Rims. The Holmes Hobbies rim qaulity is just as good as the Prowheel racing units as well. These rims are going to be a true 24" rim and tire combo. Running a Shinko SR241 2.75x18 should yeild a 24.2" outer diameter setup. This should help my Bomber look more like a bicycle again and still have the mechanical advantage of a slightly smaller rim tire combo. This will be the set up I will have on my 5405 when I get it in and going.

Rick