Wisper 905 - servicing and freewheel remover?

Wisper Bikes

Trade Member
Apr 11, 2007
6,282
2,252
69
Sevenoaks Kent
Hi Bill

You can take the rear wheel off the bike by disconnecting the motor by pulling the plug which can be found either in the controller box space (take off the half cone protector under the controller box) or on the rear frame near the back wheel, depending on the age of the bike.

The rear wheel can then be unbolted and dropped from the drop outs like any other bike.

All the best

David
 

Mussels

Esteemed Pedelecer
Jun 17, 2008
3,207
8
Crowborough
Hi Bill

You can take the rear wheel off the bike by disconnecting the motor by pulling the plug which can be found either in the controller box space (take off the half cone protector under the controller box) or on the rear frame near the back wheel, depending on the age of the bike.

The rear wheel can then be unbolted and dropped from the drop outs like any other bike.

All the best

David
He's got my old bike so to remove the freewheel he will need to dismantle the sensor wire plug and use the special freewheel remover I sent in the box.
 

pl1974

Pedelecer
Oct 1, 2008
109
4
I've been looking around at tyres - just so many to choose from!

Can anyone recommend a specific one? Ideally with a web link to a seller?

Thanks,

Paul
 

pl1974

Pedelecer
Oct 1, 2008
109
4
Thanks - all three if I could..

I guess that given the seat post suspension then comfort shouldn't be quite so high, so probably speed, I assume that translates to less resistance therefore better battery life.

Puncture resistance is important, my commute is 18 miles and the thought of a puncture is not good.

Although I'm not a fan of Halfords, I wondered about this one

Halfords | Continental Travel Contact 26 x 1.75 Bike Tyre

Its a bit narrower (1.75 instead of 1.95) I think which I assume would give a little less comfort and a little better performance?

Thanks,

Paul
 

Mussels

Esteemed Pedelecer
Jun 17, 2008
3,207
8
Crowborough
I didn't like the travel contact, it's not great round corners and I had several punctures which destabilised the tyre quite quickly. I've got the Marathon plus tyres at the moment which are much better at avoiding punctures but the ride is harsh and I think a little vague, they are quite quick though.
Avoid the styles with knobbly edges as they don't corner so well and don't offer much benefit off road. Anyway with that mileage you'll get through a few tyres so you can experiment a bit. :)
Get a decent pump and patch kit, you'll need them.
 

pl1974

Pedelecer
Oct 1, 2008
109
4
Thanks Mussels. I should add that I don't do the 18 miles each way trip every day - maybe once a week when I'm feeling in the mood.

Anyway, I got one of the halfords tyres and fitted it, to be honest it seems fine.

However, I have found that where the wires come out of the centre of the wheel they are badly chafed, this may explain a problem I've been having with the bike where I'm not getting the mileage that I once was, I'd thought it was the battery and had been speaking to Norman about sending it in for testing, however at times it has been accompanied by a grating noise from the motor, maybe this bad connection?

Its so bad, if I wiggle it then the motor cuts out. Does anyone know how I can get the wires out of the motor to repair them, or does it sound like a warranty job?

Thanks,

Paul
 

bill1963

Pedelecer
Apr 10, 2010
46
0
Hello,

Today I had my first puncture, so tommorow I must go with specific directions to the bike shop.

"dismantle the sensor wire plug "

I dont understand this Andrew can you please elaborate this with first grade English(lol)

The special tool you mention ,I cant understand how it is used.

Any link with photo were you plug it ?

Thank you

B
 

Alex728

Esteemed Pedelecer
Dec 16, 2008
1,109
-1
Ipswich
you won't have to do this just for for a puncture. you only need to take the plug apart and use the special tool when replacing the freewheel / block (the big set of 7 gears on the back wheel).

to just take the wheel out is the same as any other push bike apart from there is a big cable with a plug on the end of it. this connects the wheel to the controller. the mechanic just has to unplug this (the plug is behind a panel on some bikes and just behind the wheel on others) then they can remove the wheel and put the new tube on.
 

eddieo

Banned
Jul 7, 2008
5,070
6
Bill you seem obsessed regards getting the wheel of:confused: Most punctures are repaired in situ? I have had e bikes for over 2 years now and have never had to remove a wheel:rolleyes:

in this video chap takes wheel of....There is really no need, just do the same on the bike

YouTube - How To Repair a Bicycle Puncture
 

Mussels

Esteemed Pedelecer
Jun 17, 2008
3,207
8
Crowborough
you won't have to do this just for for a puncture. you only need to take the plug apart and use the special tool when replacing the freewheel / block (the big set of 7 gears on the back wheel).

to just take the wheel out is the same as any other push bike apart from there is a big cable with a plug on the end of it. this connects the wheel to the controller. the mechanic just has to unplug this (the plug is behind a panel on some bikes and just behind the wheel on others) then they can remove the wheel and put the new tube on.
It might not be that simple on my old 905 as I think the sensor wire plug doesn't fit through the hole in the frame (the space where the controller sits).
But I have never done that to change a tyre, if you drop the wheel out there is about 2" of play which is enough to get the old tyre out and put the new one on.
 

bill1963

Pedelecer
Apr 10, 2010
46
0
Thanks mates,

I kinow how to do it in a normal bike.

I am afraid that if something happens in the electrics ,before I learn the inside outs I will be left without a bike,

It needs for certain the inner tube replacement.And it isnt the front one which is easy.

I understood what is for the special tool.(FREEWHEEL)

Thank you all for the help.

B
 

flecc

Member
Oct 25, 2006
53,152
30,567
Of course you can even change a tube or tyre with the wheel still in! Got to be strong like me though and prepared to risk your frame :eek::

footmethodtubechange.jpg
 

bill1963

Pedelecer
Apr 10, 2010
46
0
Hello,

Changed the tire and the inner tube by just cutting the tireups.

No marathon plus tires available on stock in Greece right now.

The replacement was a flat proof(on-off) and the technician inserted an extra inner tube as an extra anti puncture measure.

The new tire is trumbling a little bit , since it is on off but I will be patient untill I found a marathon plus or a continental which was already on.

Any link with a paypal to order through internet the perfect tire for 905 will be appreciated.

Thank you

B
 
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