Best way of making an electric durny

General Discussion about large electric scooters and motorcycles and other things with no pedals.
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Bikegirl   1 W

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Joined: Apr 02 2019 5:30am

Best way of making an electric durny

Post by Bikegirl » Sep 28 2019 6:31am

Hi guys,

I am keen in working out the best way to make an electric durny (pacesetting scooter for track cycling). It would need to go about 50-60kmphr max with a 20km range minimum.

I think maybe something like a stealth ebike frame with a big (10kw) rear hub motor for easy maintenance. Or maybe something larger but I am thinking that will increase costs.

Please fire away, I am open to all ideas


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SlowCo   100 kW

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Joined: Jan 05 2015 5:43pm
Location: The Netherlands

Re: Best way of making an electric durny

Post by SlowCo » Sep 28 2019 8:26am

Why not buy an existing electric scooter or bike that can do that?
A Super Soco or Sur-ron (with road tires) or something similar could be suitable?

https://supersoco.com.au/

https://voltbike.com.au/product/sur-ron-light-bee/

If you want to keep it small and light you can consider a road race bicycle with a Cyclone or CYC 3kW kit and a serious battery.

http://www.cyclone-tw.com/2chkit.html

https://www.cycmotor.com/gallery

Edit to add:
It seems even a Bafang BBSHD 1000W kit on a road race bicycle is enough to go >60km/h. Add a 52V 17+Ah battery and you should be fine.



(keep the original large Bafang chainring for max speed)

But if you want to keep it simple with a hub motor a QS motor 205-50H will do nicely but you'll need a frame/ swing arm with 150mm drop out.
http://www.cnqsmotor.com/en/article_rea ... r/548.html

Bikegirl   1 W

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Joined: Apr 02 2019 5:30am

Re: Best way of making an electric durny

Post by Bikegirl » Sep 28 2019 3:21pm

Hi Slowco,

The soco scooter looks pretty much what I was thinking. I would have to see how much the club is willing to spend then adjust.

I think a bafang kit would be good if they are keen to keep it cheap.

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SlowCo   100 kW

100 kW
Posts: 1437
Joined: Jan 05 2015 5:43pm
Location: The Netherlands

Re: Best way of making an electric durny

Post by SlowCo » Sep 29 2019 5:30am

I think that the Super Soco would be especially good if it is for a club where different people will make use of it. It probably would need little maintenance an will be easy ridable for most people. Just make sure that if it is used outdoor that it complies to your local law and insurance laws. In Europe (where I'm from) it is sold as a moped and has a maximum speed of 45km/h.

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