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Please ignore the childish insults of the few. And remain to help the positive side of this forum. My 2d worth is what about wind resistance. The HPV crowd are clear that +90% of energy is lost in wind resistance. cd Coefficent of Drag is the standard measurement tool for this parameter. I would...

We let the Italians have Angle land if they built a wall. Bludy things fallen down already mutter mutter Haidrian mutter

Rob will you retract your last post?

Well said Warrah. It was built for a purpose and ends some perpetual arguments on this site about light electric vehicles. As it is I like it. I don't want one but respect to you for making it. And it's more than worth the price tag.

Dina fash yer sel about the hills wee a trailer. My wife mangaged a bristol +15% hill towing our bairn on a rear hub drive. Go crank drive and there is nothing realistic ye canna beat. But a 11 to 34 set at the back will give you a reasonable spread of gears

Spam is the first choice of canabalistic bots!

Tony, As I understand it the power and speed settings were to match an average cyclist who produces in the order of 250 watts and cruses at 25kph. Much faster than my wife and slower than you. This means that the assist matches a cyclist and therefore is considered no more dangerous and can be...

The first thing is you need to try an electric bike or two. Some test rides will let you know what they can do. And how she feels on one. For you a legal bike will not do? The 25kph cut cut means it is just too slow on the flat and to heavy. For your girlfriend it's different. If she won't...

Phill, One test I always suggest is to try any bike without power. I'd it has high drag then the motor will have to work hard to move you. As to the voltage amps thing. It is the total watt hours the battery has that counts. So v*a = watt hours. The bigger the number here the better. Your...

Nice frame but not universal. No crank drive options and I have a recumbent. You have a diamond frame or safety bike replacement. Good luck though.

A legal rated bike 250w can do anything a good cyclist can do except top speed. They can peak at over 750watt pushing you up virtually any hill. I know a 45 year old 120kg woman who passed a cyclist up hill on a discrete pedelec. When they met later he said panting ,please tell me that's...

100kg and a 250 watt legal system manages fine when I need it. Anything else leaves you open to a lot of legal grief.

Welcome Berian. I assume you meant Panasonic crank drive system?

That would win on the hill in Bristol. I Like it.

But the Accucell 6 charger will take the feed from a photo cell (12-17volts)and drive upto 6S . Topping up three times a day into a 400Wh setup means not storing enough for multiple charges in lipo. So 400 watts or around 2.5kg Perhaps it could be made to work! Yes carrying mains charger as...

You don't need a heavy lead acid battery. 3 s lipo will give you 11 volts to run an inverter. Charging at breakfast lunch and dinner means storing most power in the bosh battery where it's needed. At natural rest points. Reducing the lipo size required.

Then again 40 watt solar panels at 665*550 sub 4Kg. Use two one each side. Using a lipo system to store power. 2 or 3 s 10 amp. An inverter to charge the bosh battery at lunch and evening. it could be done on most days. All up system for less than 15Kg and 1.2m^2 producing around an amp or...

April onwards is long days and going north you could have 20 hours of sunshine a day! Even daylight can give power. Is solar out then? Using panels to charge lithium po batteries an then topping up your bosh is possible. How many watt hours a day do you need? In the UK using portable gen while...

On the grounds of English winning the Darwinian fight to rule the world. Any of the Arian languages could well have won. The race for Africa and Americas were nearly won by the Spanish and had the weather not saved England from the many armadas then ?? Or had Adolf been restrained by his...

Dyslexia has had significant impact on the able. True some dyslexics succeed but many struggle and a higher than average proportion end in prison. When I was young the answer was to beat the lazy child until they learned. This did me considerable harm. Having a level physics chem and biology...