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I'm not sure where the current state of knowledge has reached regarding motors for folders but, in case it's not been mentioned before, Tongxin appears to have made a narrow motor for folder forks. I got a Christmas email from Diana Lin at Tongxin which mentioned that "we have developed new...

I've just replaced the pads on my Wisper front disc brake. I have the original Promax front brake. As others have posted, it's not the best brake around but I've always found it to be effective, when properly adjusted. It's the only bike I've ever had with a disc brake so I needed to do a...

SOLD to forum member - Wisper 905se I've decided to sell my Wisper 905se. Reason for sale is that, since buying it, I've got into cycling a lot more, got a lot fitter, and now ride a non-electric bike just about every day. For the last few months my wife has been the main user but she has...

We experienced the first cut-out from our Ping LiFePO4 yesterday. It happened near the top of a long, slow hill (half a mile, perhaps 1 in 12). My wife was riding with the throttle fully open and the power faltered, then cut out. The battery was about half discharged, and we'd just had a...

We went for a ride in the country yesterday. A lapse in route-planning on my part meant we ended up having a couple of miles of bridleway to negotiate - with on-road bikes. Most of it was fine but there were a few rocky sections and some muddy bits. My wife didn't fancy some of the dirtier...

On my way to work this morning I saw a collision between two cyclists - never seen that happen before. I was following them both, a few yards back. The one in front braked sharply to make a last minute turn and started to skid, and the chap behind him, who was pretty close, smashed right...

Anyone know how brake cut-outs work? When the brake is squeezed the little switch inside gets released. Does that make a circuit, or break it, to effect the cut-out? The reason I ask is that I want to add an on-off switch, and using the brake cut-out seems the simplest way to achieve...

I've been shocked at my run of luck with these tyres - not wanting to comment before now in case it tempted fate. I never thought I'd do so many miles without a puncture. The puncture I've just fixed actually happened at about 2,500 miles. I've been aware that my rear tyre had a slow...

This was in the CTC newsletter this week. One death or injury is too many, but I think it's useful to have data like this to put risks into perspective. "The Department for Transport has published its annual bulletin of road casualties. As usual, it reveals that, despite another annual...

I've just got back from the London Freewheel event. Great day out; nice weather helped, it's saying there were 45,000 there on the news, which I can believe. Basically they closed the roads from Hyde Park Corner to the Tower of London via Buckingham Palace, Trafalgar Sq and the Embankment...

I've just got back from a long weekend cycling in Belgium. It's been said before, but the cycling facilities they have there are so far ahead of ours that it is embarassing. The canals are wonderful. Many great big, tree-lined canals, usually with a wide (6-10 ft) tarmac path on each side...

Most electric bikes have 26-inch wheels. A few, such as the Ezee Torq and Kalkhoff range have 700c. The main reason for the prevelance of 26 inches seems to be that that is what is common on bikes in China. In the UK, these wheels are commonly found on mountain bikes (both genuine off-road...

There have been a few posts recently about bike sizes. While normal bikes typically come in a range of frame sizes - 5 being typical - most electric bikes come in just one size. Some, notably the Khalkoff range, do have a range of sizes. In the old days - ie when life was simple and...

I saw a Segway (ride-on electric scooter designed for the American market to make walking obsolete) in London last week. It was on Hyde Park Corner. The chap was balancing on it, right on the edge of the kerb - clearly confident it wasn't going to allow him to fall forward into the traffic...

I stumbled across this - an electric tandem made by Flyer of Switzerland, obviously using the Panasonic motor, and a derailleur, rather than a Nexus hub. Looks pretty good, but I'd want to make sure it had good brakes! Cost is €5,000 Frank

I've just carried out Flecc's throttle modification on my Wisper. Being somewhat ham-fisted with a hacksaw, it doesn't look quite as tidy as Flecc's, but it works ok and (my main objective) enables me to fit a bar end mirror. Frank

By this I mean 'How much power do different pedelec systems deliver and how do the controllers decide when this power is delivered?' I am asking in the context of hub motor powered bikes with proper pedelec operation (power when you pedal without using throttle) - rather than: -...

I'm looking into options for an auxilliary battery for my Wisper. The objective is to get a longer range. My first thought was to add one or two NiMH 'boosters' along the lines of those that Nick/Tiberius has used to great effect on a Torq, as described on this post However I'm a...

My wife and I decided to spend the Easter weekend going on a bike trip to the South Coast. This plan was formed before the weather forecast for the weekend became clear, and we reviewed it last week and decided to go ahead anyway - but with some more warm clothes! Our route started from...

I broke a spoke on my Wisper last week and have been surprised how hard it is proving to get it fixed. I understand they are 13 gauge spokes so not particularly thick, but, because of the motor, they are not a standard length. Two bike shops I've tried so far have said they are not able to...