E-S Stealth Electric Bike Owners

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FL bomber   100 W

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Re: E-S Stealth Electric Bike Owners

Post by FL bomber » Aug 29 2019 3:28pm

Toad78.. I have a pack made from Samsung 30q 20s 12p. I don't come close to using the 36ah it has. My daily commute is 42 MI round trip.
I would think the 30Q could take more abuse then the 35E.

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Aug 30 2019 12:32am

Much higher sex factor now

Image
Last edited by Theodore Voltaire on Aug 30 2019 12:39am, edited 1 time in total.

KarlJ   100 W

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Re: E-S Stealth Electric Bike Owners

Post by KarlJ » Sep 01 2019 2:43am

[/quote]

Karl, my tires are 24 x 2.5 Maxxis Hook Worms, the best bicycle street tires ever made. I get about a 1000 miles on a rear. They'll fit on stock rims. Compared to Crazy Bob's they're longer lasting, have better grip, are slightly bigger, and have a taller profile.

They look, and work a lot better on my 65mm rims though, but you could probably say the same thing about any tire.
[/quote]

Hmm .. looks like i'll have to make a trip to USA for them as no-one selling them here as far as i can tell, usual suspects chainreaction cycles etc etc no go

KarlJ   100 W

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Re: E-S Stealth Electric Bike Owners

Post by KarlJ » Sep 01 2019 6:27am

OK so anyone using the stock motor and controller ~2013 model b52 ?

Stock is 24S Lifepo4 and closest to this is 21S in liopo/NCM/NCA typical 18650's.
Makes no difference technically for me to build 20/21/22S. - planned cell is the 35E as at 10P or more we're at 100A which is plenty more than the stock controller can pull and whilst this is a continuous number for the cell i have run 29E cells MUCH harder than rated with no real issues on my previous bike (was kinda hoping for them to die so i could build next bigger better pack).

So the question is should I build for 22S - slightly quicker with the stock controller,
stealth seem happy to sell me a new pack at 22SxP (24AH) (new pack typical lithium cobalt tech)
Assuming the controller runs 65A 4.2VPC 6006W at 22S vs 5460 at 20S all things otherwise being equal.


Thoughts appreciated - not scared of throwing a bigger controller at it later either - any advice there appreciated too!

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 01 2019 8:51am

KarlJ wrote:
Sep 01 2019 2:43am
Karl, my tires are 24 x 2.5 Maxxis Hook Worms, the best bicycle street tires ever made. I get about a 1000 miles on a rear. They'll fit on stock rims. Compared to Crazy Bob's they're longer lasting, have better grip, are slightly bigger, and have a taller profile.

They look, and work a lot better on my 65mm rims though, but you could probably say the same thing about any tire.
[/quote]

Hmm .. looks like i'll have to make a trip to USA for them as no-one selling them here as far as i can tell, usual suspects chainreaction cycles etc etc no go
[/quote]

I see a lot of them on eBay

https://www.ebay.com/itm/Maxxis-Hookwor ... SwdhdcSQ0-

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 01 2019 4:23pm

Can anyone tell me if these will fit by B52 and if they are any better than the stock standard MK 2 forks?

Thanks.

Brand new out of a 24” junior mountain bike.
Disc brake mount,1 1/8 threadless steerer, 165mm long steerer,
Suntour brand
Model XCT jr fork coil suspension
50mm travel

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 01 2019 4:57pm

Crossy wrote:
Sep 01 2019 4:23pm
Can anyone tell me if these will fit by B52 and if they are any better than the stock standard MK 2 forks?

Thanks.

Brand new out of a 24” junior mountain bike.
Disc brake mount,1 1/8 threadless steerer, 165mm long steerer,
Suntour brand
Model XCT jr fork coil suspension
50mm travel
Absolutely positively those forks won't work. Unless you want to step way down from stock, you'll have to spend at least $400.

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 01 2019 5:10pm

They were really cheap and and the frame size was correct so I thought I ask Thanks Theodore.

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 01 2019 6:52pm

I rode over to White Rock Lake today. It's about 15 miles from my house, but I managed to turn it into a 42 mile round trip.

Image

After riding about 30 miles I decided for the sake of science to investigate the theory that alcohol will make my forks bottom easier. It's a hard job, but somebody has to do it.

Image

What this testing seemed to demonstrate is that Strokers beer is less potent then the beer downtown, but neither of them cause fork bottoming.

Image

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 01 2019 7:00pm

Crossy wrote:
Sep 01 2019 5:10pm
They were really cheap and and the frame size was correct so I thought I ask Thanks Theodore.
When you're shopping for forks the size of the steerer tube is one thing. Also it has to be for 110mm hub size, 20mm axle, and a disk brake. And even if it's all that, it still might not accommodate your frame's head length as I just found out.

I read a lot of good things about this one. They say for the money it's a good deal.

https://www.ebay.com/itm/RockShox-Boxxe ... 1438.l2649

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Sep 01 2019 7:08pm

Theodore Voltaire wrote:
Sep 01 2019 6:52pm
I rode over to White Rock Lake today. It's about 15 miles from my house, but I managed to turn it into a 42 mile round trip.


After riding about 30 miles I decided for the sake of science to investigate the theory that alcohol will make my forks bottom easier. It's a hard job, but somebody has to do it.


What this testing seemed to demonstrate is that Strokers beer is less potent then the beer downtown, but neither of them cause fork bottoming.

Thats good to know about the beer not causing the fork to bottom. This data is very useful.

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 01 2019 10:37pm

I live to be helpful :)

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Cowardlyduck   100 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Sep 02 2019 4:43am

If your after a cheap fork that just 'does the job' the DNM USD-8 are still hard to beat. Although I hear DNM stands for Does Not Move. :lol: :roll:

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Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 02 2019 8:33am

Here is a question nobody in this forum would probably expect anyone to ask but the more I contemplate the thought the more it makes sense.

Ok ... Is it feasible to make a lighter, less expensive, battery pack that still has a moderate speed and uses an old bomber battery pack to canabalise? Only buying what cells are needed and uterlising the existing BMS?

Is it possible or realistic?

WHY???

Because when our old Bomber batteries die we obviously have to replace but I'm in a situation I can either buy one from Stealth or have a custom one made. The first would be fast delivery and to spec the latter would be a long lead time but to my specs to get what I want and to enhance my experience.

So it unrealistic to buy another pack while I wait and I can't wait months to ride.

But if I was able to use my current pack and make it lighter etc I could use it while I wait and could throw some $ into it knowing that I can keep it after I get my custom battery and take it with me as an emergency pack.

Imagine the ability to have a battery issue on the road pull out your emergency pack and you can still make it home. Need to run some tests/diagnostics that could potentially harm the battery switch it out for the spare.

Thoughts?

My father did tell me as a child " It is better to keep your mouth shut and look like a fool, then to open it and remove all doubt." (Really praying this isn't the case here.)

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 02 2019 9:47am

Crossy wrote:
Sep 02 2019 8:33am
Here is a question nobody in this forum would probably expect anyone to ask but the more I contemplate the thought the more it makes sense.

Ok ... Is it feasible to make a lighter, less expensive, battery pack that still has a moderate speed and uses an old bomber battery pack to canabalise? Only buying what cells are needed and uterlising the existing BMS?

Is it possible or realistic?

WHY???

Because when our old Bomber batteries die we obviously have to replace but I'm in a situation I can either buy one from Stealth or have a custom one made. The first would be fast delivery and to spec the latter would be a long lead time but to my specs to get what I want and to enhance my experience.

So it unrealistic to buy another pack while I wait and I can't wait months to ride.

But if I was able to use my current pack and make it lighter etc I could use it while I wait and could throw some $ into it knowing that I can keep it after I get my custom battery and take it with me as an emergency pack.

Imagine the ability to have a battery issue on the road pull out your emergency pack and you can still make it home. Need to run some tests/diagnostics that could potentially harm the battery switch it out for the spare.

Thoughts?

My father did tell me as a child " It is better to keep your mouth shut and look like a fool, then to open it and remove all doubt." (Really praying this isn't the case here.)
It's funny I almost made a post about my battery last night, but I figured I'd already been a big enough know it all for one night, but since you ask lol. My 2 cents is the stock battery isn't worth saving because it's made from heavy, saggy, low capacity LiFePo4 cells. After living with a 18650 pack made from samsung 30Q cells I would never go back. Assuming that to be the case next question is, how much capacity should it be? Before buying a 24ah battery I would have said 35ah or more is best, but for whatever reason I ended up with 24. Since then I've changed my thinking a little bit. Of course I'd like the most capacity possible, but after living with this 24ah which is 5 lbs lighter then stock, and 6 ah bigger, I have to say I love the lighter weight, especially being high up in the frame. I hadn't considered that before buying a new battery, but knowing what I know now I don't think I would want to go more than about 28ah because of this weight issue unless I really needed the extra capacity.

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 02 2019 11:12am

Ok so cells are rubbish but bms, connectors etc could they be used and lets say as hypothetical figure of $500, is it possible to still use stock controller and make a pack that would do 40 kms/ per hour for a distance of 15 kms?

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 02 2019 11:23am

Crossy wrote:
Sep 02 2019 11:12am
Ok so cells are rubbish but bms, connectors etc could they be used and lets say as hypothetical figure of $500, is it possible to still use stock controller and make a pack that would do 40 kms/ per hour for a distance of 15 kms?
Nope

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 02 2019 1:50pm

Well no ambiguity there.

Thanks Theodore.

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 02 2019 1:51pm

Oh quick question ... is a fighter battery pack and a bomber one interchangable ?

Theodore Voltaire   1 MW

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Re: E-S Stealth Electric Bike Owners

Post by Theodore Voltaire » Sep 02 2019 2:36pm

Crossy wrote:
Sep 02 2019 1:51pm
Oh quick question ... is a fighter battery pack and a bomber one interchangable ?
I think they're different voltages

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Sep 02 2019 5:53pm

Theodore Voltaire wrote:
Sep 02 2019 2:36pm
Crossy wrote:
Sep 02 2019 1:51pm
Oh quick question ... is a fighter battery pack and a bomber one interchangable ?
I think they're different voltages
They are different voltages, 58.8v HOC vs 92.4v HOC. the Fighter battery is interchangeable with the Bomber, because it will fit inside the frame, but the Bomber pack will not fit in the Fighter.

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 02 2019 6:48pm

Ok I'll buy a secondhand fighter and that will temp solve me battery/bike issue in the short term.

Sweet.

I'm on it.

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White Knight   100 mW

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Re: E-S Stealth Electric Bike Owners

Post by White Knight » Sep 03 2019 3:47am

Hey Crossy,

It looks like you live in Australia, l am in South Australia and have two spare 2015 era B52 packs that are still working fine although have had 1000+ cycles. Happy to give you one if you can organise freight/pick up.
B-52 BOMBER #592

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 03 2019 8:44am

White Knight that is a very kind and generous offer thank you so much!!!

I have managed to secure another pack from the Stealth team at Brisbane for the foreseeable future and possibly may buy a fighter as well.

Again really moved by your kind offer, happy that I was able to resolve it myself. If I can offer my assistance in return please do not hesitate to ask.

Crossy   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Crossy » Sep 03 2019 8:48am

Ps I live on the Gold Coast If you ever make it up these ways let me know.

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