E bike conversion

Electrically assisted bikes, trikes, etc.
densmall
Posts: 16
Joined: 29 Jan 2015, 10:20am

E bike conversion

Postby densmall » 10 Apr 2019, 4:46pm

I have a 27.5 inch wheel hardtail mountain bike that I would like to convert to an Ebike with a front wheel motor,I don`t need lots of range as I only need the power to help with long and steep hills,any advice as to make,model,hints and tips will be much appreciated.

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SimonCelsa
Posts: 549
Joined: 6 Apr 2011, 10:19pm

Re: E bike conversion

Postby SimonCelsa » 10 Apr 2019, 5:19pm

I've had good service from a 'Woosh' front hub conversion (700C tandem). Fairly sure they could sort you out something in 27.5. More importantly I have found them excellent to deal with & swift in replying to queries. Also possibly try the pedelecs forum which probably has a wider range of experience than here.

http://wooshbikes.co.uk/?hubkits

https://www.pedelecs.co.uk/forum/

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SimonCelsa
Posts: 549
Joined: 6 Apr 2011, 10:19pm

Re: E bike conversion

Postby SimonCelsa » 10 Apr 2019, 5:33pm

As a point of note, the only slight problem I had was trying to fit the front hub motor between the forks. Although they are 100mm OLN the tubular design of the lower fork legs did not facilitate easy fitment, you'd be better off with flatter fork legs near the dropouts to maintain the 100mm OLN clearance in the region of the hub motor. A picture speaks a thousand words:

vtandem left side clearance.jpg


vtandem right side clearance.jpg

hemo
Posts: 329
Joined: 16 Nov 2017, 5:40pm
Location: West Sussex

Re: E bike conversion

Postby hemo » 10 Apr 2019, 5:34pm

Don't be fooled into thinking conversions are easy to ride unpowered, the extra weight of motor,controller & battery etc make a difference and soon make the bike feel like trying to ride a brick at times. Some hubs freewheel better then others and the extra central dead weight is the reason.

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yakdiver
Posts: 1163
Joined: 12 Jul 2007, 2:54pm
Location: North Baddesley Hampshire

Re: E bike conversion

Postby yakdiver » 10 Apr 2019, 6:39pm

I used this company, not cheap but well made
https://www.cyclotricity.com/uk/
Alias Numbnuts

Oldjohnw
Posts: 1120
Joined: 16 Oct 2018, 4:23am
Location: Northumberland

Re: E bike conversion

Postby Oldjohnw » 11 Apr 2019, 7:52am

I used these: excellent service. For a hybrid for touring.

http://www.electric-bike-conversions.co.uk/
John

Cycling and recycling

stodd
Posts: 68
Joined: 6 Jun 2018, 10:24am

Re: E bike conversion

Postby stodd » 11 Apr 2019, 8:58am

I have the same experience as Simon with Woosh and 700C tandem front conversion; and suggestion to ask on the more active https://www.pedelecs.co.uk/forum/forums ... ussion.42/ as well.

(I even thought for a moment, hang on, I wrote that and they've somehow changed the author!)

reohn2
Posts: 34244
Joined: 26 Jun 2009, 8:21pm

Re: E bike conversion

Postby reohn2 » 11 Apr 2019, 10:04am

Oldjohnw wrote:I used these: excellent service. For a hybrid for touring.

http://www.electric-bike-conversions.co.uk/

+1 we got our tandem conversion from them,I fitted it in less than three hours start to test ride IIRC.
A link to the thread about ours:- viewtopic.php?f=55&t=117719
-----------------------------------------------------------
I cycle therefore I am.

Greenbuilder
Posts: 103
Joined: 17 Nov 2012, 6:24pm
Location: Tamar Valley

Re: E bike conversion

Postby Greenbuilder » 11 Apr 2019, 12:03pm

Can I recommend a crank drive motor, such as this Bafang BBSO2 which I've fitted to my 27.5 hardtail.
Easy to fit, low centre of gravity and the bike pedals fine with it turned off. I put a big 15ah battery on, which lasts 4-5 hours off road, but a 9ah would be ok and much lighter. I used to ride hub motor bikes, but these are much better.
IMG_20190411_114944.jpg
I

densmall
Posts: 16
Joined: 29 Jan 2015, 10:20am

Re: E bike conversion

Postby densmall » 14 Apr 2019, 4:41pm

Thank you for your help,the situation is much clearer now,I just have to decide which way to jump.