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Although these are often disappointing, here's a radio program that could be of interest to e-bikers and the environmentally aware. It's titled Connect and here's the blurb: "Battery Power. Quentin Cooper explores how recent technological advancements have led to batteries that last longer...

As I've previously posted, the Q bike will continue to be updated at any opportunity to make it even better yet. One thing that still awaited resolution was the requirement for different stands to cover different purposes, and that now been resolved, as you'll see here. To see the entire Q...

Information for those members who fitted this alarm that I had on the Q bike: Today it refused the disarming number and wouldn't work properly. Though not mentioned in the instructions, it transpired that when the battery runs down, the personal disarming number reverts to the default...

Increasing demand from owners for more information on the repair and maintenance of the Panasonic motor unit in the Giant Lafree Twist series has prompted me to produce a highly detailed and very fully illustrated online facility for them. This will also be of some use to owners of other...

I've now posted the third thread in the series examining the technical issues of e-bikes in depth, the intention being to give a fuller appreciation of all that is involved in each subject. These can help people with their bike choices, and also clarify the basis for discussions in the main...

This is the third in a series of technical articles covering some of e-bikes complexities in quite full detail so that all aspects of the subject can be appreciated. The background to the suspension issue. Suspension has been around for hundreds of years since carriages and stagecoaches, and...

This is the second in a series of technical articles covering some of e-bikes complexities in quite full detail so that all aspects of the subject can be appreciated. It's impossible to accurately measure what electric current there is stored in a battery since they are chemical devices, the...

This is the first in a series of technical articles covering some of e-bikes complexities in quite full detail so that all aspects of the subject can be appreciated. We frequently see posts proclaiming the superiority of motor drive through gear systems on e-bikes, slighting wheel hub motors as...

From time to time I seem to come under attack from new members entering this forum on some of the more complex subjects, and am often accused of saying things I haven't said. This often arises because their imperfect understanding of the subject in question leads them to misunderstand what has...

Testing the Q bike on a 1 in 3.3 hill section on motor only until near stall point, suddenly a huge grinding crash from the rear motor wheel and then it locked, at the very least the motor totally wrecked one might think. Bounced the bike on the ground a couple of times until the drive returned...

On Thursday 26th at 4.30 pm, The Material World on BBC Radio 4 or through their "Listen Again" service. Here's the subtext: "As you head out for a gentle summer's cycle ride, spare a thought for the mathematicians who have spent a century puzzling over the maths of a bike's stability...

I've placed an item about this in the Battery FAQ section here .

One of the regular "What if" questions is what would happen if cheap consumer rechargeable NiMh cells were used to make up an e-bike battery at low cost. Some while ago A to B magazine did just this with 20 cells to make an add-on back-up battery for a Giant Lafree Comfort, which gave up to...

Though there's about a decade of experience with small Li-ion cells, there's very little knowledge of the large capacity multi-cell batteries that we use. The first of them are reaching a year old now, and as previously predicted from laboratory testing, many reaching that are showing around...

Re: NiMh battery life, much depends on the battery and charger design and quality. For the best part of four years I used a twist for everything, utility cycling, trailer towing etc, and in daily use often seven days a week. Coming up to four years old I recelled one battery just to return...

The T bike (Torq Radical) that I've just announced uses a technically simple NiMh battery modification that makes a substantial contribution to the greatly improved hill climbing. Much of the benefit will be given to any Torq using that battery, so I've posted details on how to achieve that in...

When first planning the Radical battery, I intended three extra cells to bring the voltage up to 39.6 volts, the maximum that 36 volt controllers will normally reliably accept. Since there was already space for a single additional cell, I enlarged the case to make room for two more side by side...

The latest June edition of Velovision out now has good tests of the Sparta Ion, the Airnimal Joey Move with BionX motor, and the eZee Forte in both flat Cambridge and hilly Sheffield. In addition, there's a long article on a bike with the xtracycle attachment fitted with the powerful...

When I mentioned this project straight after the Q bike was released, there was a guessing game in the forum as to what I would do to the Torq. One guess of a smaller motor wheel was a possibility at that time, but later ruled out. I hadn't intended to immediately complete this, but such...

Thought you might like to see this anti-theft addition to the Q bike. .