Any ideas for best conversion kit

[Peter.Bridge]

My friend asked if I could convert this for his wife





Any ideas ? She's very light 60 kg, bike is 11 kg, reasonably flat terrain that they cycle on

Any thoughts ?

 

[saneagle]

My friend asked if I could convert this for his wife

View attachment 62281
View attachment 62282
View attachment 62283

Any ideas ? She's very light 60 kg, bike is 11 kg, reasonably flat terrain that they cycle on

Any thoughts ?

I did one of those for The Gadget Show, and Jason won the challenge on it - by a lot. Mine had a rear cassette motor and downtube battery. There are mamy choices for conversion kits depending on your budget. I'd avoid a front motor. If she wants it for commuting to work, stick to a rear motor. If she wants light-weight, there are a few options. You need to give us a few requirements if you want specific advice.

 

[Peter.Bridge]

I was thinking rear cassette and down tube battery, she had a Pendleton e-bike but she found it a bit heavy and clunky, so I was thinking something a bit more lightweight. I think 36v would be fine. What rear motor did you use ?

ETA

"Yes Peter, I have the bike it came yesterday, far better than expected. Looking for a conversation for speed and longevity, quality rather than cheap "

I did explain the UK law to them !

 

[Nealh]

Make sure a KT system is used, 17a with AKM100 CST or TBK100AD CST .
Both light at 2.1kg.

 

[saneagle]

I was thinking rear cassette and down tube battery, she had a Pendleton e-bike but she found it a bit heavy and clunky, so I was thinking something a bit more lightweight. I think 36v would be fine. What rear motor did you use ?

I used a Bafang CST. It was actually part of an Oxydrive kit. It was quite big and powerful. If she wants something light, A Q100C with a KT controller and a small Aliexpress bottle battery.

 

[Peter.Bridge]

High Torque Hight Speed Motor TBK-100H 36V 350W Ebike Front 100mm Rear 138mm Gear Hub Motor 36H 9pins Motor Cable - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

a.aliexpress.com

I had a conversation with tbk





That wheel size sounds wrong ? should it be 622 mm ?

I could find somewhere in the UK to build the wheel ?

 

[guerney]

I could find somewhere in the UK to build the wheel ?

@PC2017 found this motor wheel building dude dude:

https://www.pedelecs.co.uk/forum/threads/29er-mxus-xf07-wheel-build-good-idea-bad-idea.47991/page-2#post-734760

 

[Peter.Bridge]

@PC2017 found this motor wheel building dude dude:

https://www.pedelecs.co.uk/forum/threads/29er-mxus-xf07-wheel-build-good-idea-bad-idea.47991/page-2#post-734760

Just contacted Arrow Wheels

"Hi Peter,

Yes shouldn't be a problem, if it has the same number of spokes as your existing wheel the would be able to use the rim from that bike or supply a new rim if needed.
Rims are around £40.00
Labour £45.00
Sapim 13g stainless spokes and nipples £22.00
Return post £10.00"

 

[Sturmey]

pswpower now has motor only akm 100 from Germany for £71 including delivery.

electrical bicycle E-bike Motor AKM 100SX Inner Rotor Motor 36V 350W High Speed Brushless Gear Hub Motor Front Rear cassette Wheel Drive

electrical bicycle E-bike Motor AKM 100SX Inner Rotor Motor 36V 350W High Speed Brushless Gear Hub Motor Front Rear cassette Wheel Drive

www.pswpower.com

 

[guerney]

When I've toyed with the possibility of going KT controller controlled with a hub motor from TBK or PSW for my 26" wheeled Dahon folder, I've been put off by "350W" labelling or engraving on the motor. Custom label is a fix I suppose. My BBS01B is engraved "250W", and is furthermore labelled in authentic Chingrish, which confirms it's authenticity beyond question.

https://www.ebay.co.uk/itm/285385143084?var=587287817778