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Are you serious? So we should chuck our gears and electric motors and push our bikes everywhere instead? I had a feeling I was doing something wrong. Now I know. Thanks for the enlightenment. If only you had told me that 10 years ago, I could have saved thousands.

Solder the shunt then.

If it's that fantastic, you'll sell loads of them and retire early. If it's as bad as the Momentum, you'll be shipping them to Matt at E-bikes direct to clear them out at a substantial discount. I wish you good luck.

You can have a single speed bike, like the Gtech, which works and a lot of people are happy with it. You can have a 2-speed bike with the Automatix driven by a crank motor or you can have a front motor, like the Momentum. Some guys (not many it seems) bought Momentum bikes and were happy. You...

Take the end-plate off to see if the shunt is behind it waiting for a blob of solder. It should be on the left between the mosfets and the capacitors. They keep changing the layout of these controllers, so you might have to take all the screws out to expose the shunt if it's not there. There...

Congratulations, you've invented the hub-motor, except that yours has all the disadvantages of a crank-drive too.

You're nearly there. With a cadence sensor, you set the amount of power on the controller's control panel (LCD, LED panel). There are mostly 5 levels with LCD and 3 with LED. If you don't get a control panel, you're correct that you only get max power when you pedal, which can be a bit...

Like with ebikes, the motors can often give a lot more than what they've previously been asked to.

https://em3ev.com/shop/bbs02-bling-ring/ You can find it in the UK if you search hard enough - maybe Brighton Ebikes.

The controller can get a speed signal from either the motor hall sensors or a speed sensor. Some motors have internal speed sensors otherwise you can fit one to the wheel. Independently from the controller, every motor has its own maximum speed, so it's important that you choose one with the...

People come on this forum wanting to convert all sorts of weird and wonderful bikes, but to be honest, in most cases, it doesn't make sense to convert them. Often, by converting them, you spoil everything that's good about them, and when you have an electric bike, many of the advantages that...

When you buy a kit to convert a bike, the speed limit, at which point the motor switches off, in most cases can be set to whatever you want. If you set the speed to 15 mph, the motor will switch off and disengage at 15mph, allowing you to pedal on to whatever speed your leg power and external...

The motor alone doesn't change very much. It's the controller that decides how much power you get, and the battery has to be able to supply that power. Assuming that you have a 14A or 15A controller, you can increase your torque/power by about 20% by adding a blob of solder to the shunt in the...

Some of the bikes with Chinese electrial systems can be derestricted yourself by entering a code or button sequence. into the LCD. The Oxygen bikes are like that and they'll do over 20 mph when you derestricted them. It seems that they're quite popular as a fast commuter if that's what you want...

My interpretation is that the 250w restriction only works on the throttle. When you're in 250w mode, you still get the full 1000w available to the PAS, but you can cut it down via the 5 levels of speed or power that you can select by the buttons attached to the LCD. Basically, the 250w mode is a...

Chainline isn't that important. It's just a case of whether the chain keeps coming off the chainwheel, which you can probably solve with a chain-guide.

Your BB is 100mm, not 73mm. That's why your chainwheels are well clear of your chainstay.

Photos, or it didn't happen!

I can't understand what you're saying. If you had a bike with 26" wheels and the gearing was about right for normal pedalling, then a BBS01 with a 44T chainring gives approximately the correct gearing, but if you have 20" wheels, the gearing is a long way too low. You're talking about a 32T...

Do you work for Ebco then?