Hire E-Bike build thread

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Hickbeard   1 mW

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Hire E-Bike build thread

Post by Hickbeard » Dec 02 2019 5:54am

Cost and parts list. Cost so far £305.

£0. Obike donor bike
https://en.m.wikipedia.org/wiki/OBike
£250. 70x Sanyo 18650GA cells from http://queenbattery.com.cn/44-ncr18650ga-3500mah-10a
£0. 18650 cell holders
https://18650.lt/index.php/5p-n-e-s-e-module/
£55. 13x tab set for holders
https://18650.lt/index.php/product/n-e-s-e-tab-set/

Not much to show yet but figured would start the thread anyway.

This is my Donor bike. It was an abandoned hire bike. Nice and chunky look and feel to it.

I will eventually lace a hub motor into the existing wheel for aesthetics, assuming it will be strong enough.

I'm thinking of replacing the basket with a peli case to hold controller and battery on the front.

Thats it for now. I'll update as it progresses. Image

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Last edited by Hickbeard on Dec 02 2019 5:54am, edited 2 times in total.

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E-HP   10 kW

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Re: Hire E-Bike build thread

Post by E-HP » Dec 02 2019 10:17am

Hickbeard wrote:
Dec 02 2019 5:54am

I will eventually lace a hub motor into the existing wheel for aesthetics, assuming it will be strong enough.
Front or rear? I'm guessing rear to even out the weight from placing the battery in the front. You should check the number of spokes the stock rim takes.

Any plans for brakes?

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 02 2019 10:51am

E-HP wrote:
Hickbeard wrote:
Dec 02 2019 5:54am

I will eventually lace a hub motor into the existing wheel for aesthetics, assuming it will be strong enough.
Front or rear? I'm guessing rear to even out the weight from placing the battery in the front. You should check the number of spokes the stock rim takes.

Any plans for brakes?
Yeah rear hub.

Stock rim is 36 as is hub motor.

Currently brake will be front only drum Image which is accident waiting to happen I know. Got some cable discs I'll look to fit once the rest of it is up and running.

The aim of this one is cheap as chips. Make lots of mistakes on this one to avoid making the same ones on the next lol

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E-HP   10 kW

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Re: Hire E-Bike build thread

Post by E-HP » Dec 02 2019 12:37pm

Hickbeard wrote:
Dec 02 2019 10:51am


The aim of this one is cheap as chips. Make lots of mistakes on this one to avoid making the same ones on the next lol
Great philosophy! Try to keep the mistakes low cost :D

SlowCo   100 kW

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Re: Hire E-Bike build thread

Post by SlowCo » Dec 02 2019 2:46pm

Doesn't an abandoned rental bike stay property of the rental company? It looks almost new. Sounds sketchy...(hope it's not)

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 02 2019 3:43pm

SlowCo wrote:Doesn't an abandoned rental bike stay property of the rental company? It looks almost new. Sounds sketchy...(hope it's not)
Contacted the company and they said they did a trial in my area but decided not to roll out and it wouldn't be viable to come and collect it so wrote it off. Told me to remove the GPS and post it back to them and I could keep it.

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SlowCo   100 kW

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Re: Hire E-Bike build thread

Post by SlowCo » Dec 02 2019 4:57pm

Then I'll call them to do an unsuccessful trial in my area :lol:

Good luck building the bike up like you want.

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 02 2019 6:04pm

SlowCo wrote:Then I'll call them to do an unsuccessful trial in my area Image

Good luck building the bike up like you want.
I actually think they've gone bust now but...

ImageImageImage

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amberwolf   100 GW

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Re: Hire E-Bike build thread

Post by amberwolf » Dec 02 2019 11:28pm

Hickbeard wrote:
Dec 02 2019 10:51am


Currently brake will be front only drum Image which is accident waiting to happen I know.
If you use a DD hubmotor, you can use regen braking in the rear to help (though your primary brake is still the front).

If the front brake you ahve will lock up the wheel, you've already got all the braking on it you can get. No need to change the brake for something else, unless you just prefer some other type.

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 03 2019 1:59am

amberwolf wrote:
Hickbeard wrote:
Dec 02 2019 10:51am


Currently brake will be front only drum Image which is accident waiting to happen I know.
If you use a DD hubmotor, you can use regen braking in the rear to help (though your primary brake is still the front).

If the front brake you ahve will lock up the wheel, you've already got all the braking on it you can get. No need to change the brake for something else, unless you just prefer some other type.
I don't think the front will to be fair. It's the standard drum and is pretty poor.

For regen does it still use brakes external of the motor or something inside. I'll need to Google regen brakes on ebike as I know very little.

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 03 2019 4:39am

First 18650 cell holders 3d printed. My mate is doing 2 every night.

Ordering the internals from here https://18650.lt/index.php/product/n-e-s-e-tab-set/
Image

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AngryBob   100 W

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Re: Hire E-Bike build thread

Post by AngryBob » Dec 11 2019 12:53pm

Do please post on results with the battery kit. I have not yet seen a user review for Agniusm's (sp?) current kit, though his previous one for pouch cells was said to work well. Hopefully his business is going well and is very busy as he does not seem to post here as often as he used to.

He seems to do good engineering and thorough testing.

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 13 2019 12:56pm

Had a parcel delivered today from China.

My 18650 cells have arrived ImageImage

But off to France now so can't open them to check Image

All the cell holders are printed as well

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Image
Last edited by Hickbeard on Dec 13 2019 12:56pm, edited 2 times in total.

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Hickbeard   1 mW

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Re: Hire E-Bike build thread

Post by Hickbeard » Dec 13 2019 12:57pm

AngryBob wrote:Do please post on results with the battery kit. I have not yet seen a user review for Agniusm's (sp?) current kit, though his previous one for pouch cells was said to work well. Hopefully his business is going well and is very busy as he does not seem to post here as often as he used to.

He seems to do good engineering and thorough testing.
Really nice guy.

I'll do a review next week when I've got them to hand. Couple of things to point out but no dramas really.

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