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Or you could make a cardboard template, have a triangle bag made from it to your spec, then send it to Jimmy at e-bike batteries and get him to make one. It'll be far superior to anything you can achieve and have specified known maker cells capable of delivering the max continuous current you...

If the motor is rated at 1000W, this is the 'maximum continuous rating' and is nothing to do with what the motor actually draws. It is merely the maximum continuous wattage that the motor can take without overheating. The controller maximum current will tell you more about the nominal wattage...

That's a pity - I was looking forward to smoking my battery !

Have a look at geared rear hubs (250w) and a rear rack battery. The weight distribution will be rear biased but, on tarmac, should be able to get used to it. Alternatively you could go for a front hub and rear rack - works well for me. Make sure that the forks have a strong enough drop out...

A fully charged 36v battery should be 41-42v. The link you've put up is for a 48v battery, this should be 54v fully charged. So not sure what it is you've actually got there. Getting a red light during power demand is a symptom of voltage sag. This normally happens when more current is being...

You're confusing Ah (which is a capacity rating) with A which is a flow rating. Ah = Amp hours. Tells you how much current a battery can deliver and for how long. So a 17.5 Ah battery will (theoretically) deliver 17.5 amps for one hour or 1 amp for 17.5 hours. A = Current flow measured in...

Yes: 1 get a 250w hub motor 2 Make sure the dropouts are filed deep enough to take the motor axle and anti rotation washers. 3 Fit a substantial torque bracket - if not two. Here's a good one I've used, fits to mudguard or rack mount holes...

I have a Carrera Crossfire bought in 2015. It has an Ezee front hub kit origionally bought in 2014 and transferred from another bike. I use the battery rack that came with the kit, original cells replaced, by Jimmy, with Boston power cells. I also use a soft pack battery in parallel, also...

Your pics are blurred and I can't see properly. I suspect that the intermittant cut outs are caused by the red and lack wires touching. Insulate them from one another and should get rid of fault. Post some clearer pictures and we will be able to help with the cable.

The ones in Ceredigion have been closed or difficult to get into for a long time. As I cycle around I'm noticing an increase in stuff being dumped at the roadside and over hedge banks, seems to be all domestic stuff. I bought something called a Hippo Bag on line. Various sizes, comes flat pack...

You put what is basically a motor cycle motor into a bicycle frame and this is what happens. I don't know what current your battery is capable of delivering, but it is certain that the turning moment that the dropouts have been subject too are far higher than the frame was designed to stand up...

Probably the easiest is a front hub motor. Providing that that the forks are steel (test with a magnet) and the dropouts are 100mm there should be no issues with fitting. The front rack fixings may need a bit of filing though. A rear rack battery would be best, but you need to check that the...

Think we're gonna need some more pics. Is that the battery mounting plate? Looks like it could be either a motor wire or a positive going to the controller. It looks like it's been cut, how'd that happen?

Get creative with some Sugru. This is moldable glue, a bit like plastecine, but sets rock hard.

It sounds like the motor control system is speed control. They do tend to be a bit sudden and will give full power up to a given speed. My advice, find yourself a nice straight, quiet path or country lane so you've got plenty of room. Tell yourself that there is going to be a kick when the...

Hi Marnet, The bike in my avatar is a Carrera Crossfire. I put an Ezee front hub on it (probably too big and torquey for you) about 5 years ago. It has given me almost trouble free service for some 9k miles now. I have had a small issue with a brake connector, wired round it. The pas disc...

EV's carry far more sophisticated circuitry as weight is not such a problem. This means they can mitigate against the damage, that high charging currents can cause, in a way that bike batteries can't.

'Tis a thing of beauty. The joinery is sublime, even if achieved by cnc routing. The old gold coloured fittings are mouth watering. Don't think they'll ever be common, but good luck to him.

Good grief that's ugly ! When I saw the word Citroen my mind immediately went to that design classic the DS, so this came as a real visual shock. Think they're going to have to re=skin it to get people into it.

Hi Iain and welcome. One thing you need to be aware of for consideration is the two different methods of pedal motion detection in order for the system to deliver power. E bikes are only allowed to give power assistance when the pedals are being turned - otherwise it's a moped ! One method of...