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Wisper 905se City S, 36V 14Ah 2010 model, plus spare battery, also 36V 14Ah. All supplied by PowaRider of Woking. Very good condition, not much use (maybe a thousand miles), well maintained. All usual equipment, front disc brake, rear shoes. Schwalbe Marathon Plus tyres, slimed tubes. Off-road...

Only tenuously electric, I'm afraid... I want a small digital clock (to tell the time, just) which I can mount on my handlebars. No, not a computer - and for some unknown reason my fancy controller screen shows all sorts of things, but not the time. Plenty of clocks, but I'd prefer a...

I've had occasion to move a couple of ebikes recently, up and down the country, and was lucky enough to find a van courier who only wants £35 per trip (although I give him a bit more). So far 100% reliable. Emails or phones when he's collecting, and when he's delivering, and always on time. I...

Trying to find a nice 'stable' setting for my new bike, the internet wisdom seems to be that heavyweight riders should have loads of pressure in the rear tyre, much less in the front. Makes sense, so... My Marathon Plus are rated at 45 to 115 psi, so I put 50 in the front, and was going for 100...

Small wheels, as on the Juicy Folder for example - are they less stable than full-sized 'normal' bike wheels, or is it countered by the chunky tyres? A.

To protect my new e-bike, I bought a heavy chain from Pragmasis (this is their website:) http://securityforbikes.com/about.php In spite of warnings on their site about the size and weight of these chains (they even have a photo showing how small a 50p piece looks in comparison), I ordered a...

I've just bought a Pragmasis chain (pic of link size below) and a top-end Squire padlock to go with it. Good idea, etc., to spend money on security, as the police recommend about 15% of a bike's value as a good starting point for buying a chain. Trouble is, on looking at the chain and my bike...

Just about technical, I think. I've bought a Pragmasis chain. Not thief-proof, but then nothing is. But it is HEAVY - around 4kg. My bike, a Dave special, is well balanced, but I think a 4kg lump of metal on the rear carrier might make it back-heavy. Thus, I'm wondering whether carrying the...

Are there any accurate statistics on cycling accidents per road mile cycled? I know that a 'slight' accident car vs. bike will often be far more serious than a car vs. car accident, but sometimes the media seem to jump on cycling, particularly in London, as being akin to base jumping, and I...

Lights and cameras on helmets. If you come off your bike and land on your head, do these represent an extra hazard? I'm thinking on the lines of head vs pavement, or head&camera vs pavement. Is there a chance that the thing on your helmet could be driven through your helmet into your skull...

I was reading the spec. of a Brompton, and it seemed that you could either have pedelec function, OR throttle, but not both. Was I reading it wrongly, or is this the case? And are there any recommended electric folders that have both pedelec and throttle (like my Wisper 905)? Thanks. A

Hello. This shifter came with my Wisper 905 4 years ago, and I've grown to like it, even though it's not as sleek as more modern versions. Can anyone here pin down the model? Also, how complicated are shifters to change? The cable etc is all in place on another bike, but I'm not keen on the...

Are there any recommended 'teach yourself ebike repairs' books about? I don't want to BUILD ebikes, nor strip down controllers, repair burnt-out motors, etc., etc. I just want to have some basic clue when my trusty Wisper 905 won't do anything! Would a multi-meter and a short course on ebikes...

I saw a bit of 'Dragons' the other week, and one of the pitches was for a bike helmet with built-in LEDs giving a semi-circle of bright lights around the front and back of the head. Looked like a good idea, so I bought one. And am now sending it back. I've got a largish head, so ordered the...

Torque - can someone give me a brief clue on torque. If a certain battery/motor/ebike configuration gives, say, 45Nm, is that by definition MUCH less powerful than an ebike giving, say, 80Nm, given the same heavy rider? Speed isn't important in this equation, but raw power (hill climbing...

Just so I can compare other models more accurately - what's the nominal/actual Nm torque rating for my 905 se Wisper? It's a 2010 model, if that makes a difference. Thanks. Allen.

I live in a v.small London flat, and manage to get my bike inside my front door, where it is, sometimes, a pain in the ass. Alternative is carting it up some steps, down some steps, then downhill along 40 yards of manky garden path, to my shed. Bringing it back is harder, obviously. Has anyone...

Wisper 905, 2010 model. Just noticed this sequence... 1) Turn it on at key, turn it on at handlebar LED switch, lights all light up, choose max power, ride away. All normal. BUT 2) Turn it on at key, turn it on at handlebar LED switch, then turn it OFF again at LED switch, and it STAYS off...

It’s now four years since I bought my Wisper 905. I hope this review will prove useful to anyone thinking of buying one. I went for the 905se City with a 36v battery, fitted with Schwalbe Marathon Plus tyres and slimed tubes. I mention these specifically as I haven’t had a puncture in four...

Probably not 'technical', although it is to me. I want to fit a Blackburn mtf rack http://www.blackburndesign.com/racks/mtf-1-front.html#.U58BOy8Rm_5 on the front of my bike. The only mounting points are mudguard lugs, tugged inconveniently away. Thus, I was thinking of using P Clips, at the...