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I tried the stick on magnetic switches with hydraulic brakes, but they are hopeless off road. The reed switch keeps closing and cutting the motor due to vibrations on the rough stuff. It all works perfectly on flat tarmac, but as soon as I start hitting some jumps they keep cutting the motor...

Sticking them in a tub of vinegar for a day or two works better. The acetic acid eats all of the rust away leaving them looking all shiney and new.

Yeah, a Stealth can cause a lot of damage in a kitchen on ghost throttle. For some peculiar reason, the Chinese seem very partial about using blue for +5v. But then again some do and some don’t. I think it depends upon what kind of a mood they are in when they are wiring on any particular day.

Fortunately you can’t do any damage to the hall sensor in the throttle or the controller if you get the wiring wrong. But your bike will take off at high speed if you put 5v onto the signal wire to the controller. I have seen surrons cause absolute mayhem when their throttles go wrong. My...

Freewheeling down the Wicklow gap will get you there easily. Getting to the top in the first place is another matter.

If I didn’t have my Greaser I would be very tempted to buy this. It’s a grand cheaper than a new one. The only thing putting me off is it’s a 750 model rather than a 250. But I’m pretty sure a 250 has the same motor as a 750...

As said previously, you probably have a few bad cells in your battery and it’s likely that a few more will go bad in due course. So you will get a reduction in range because your low voltage cut off will kick in and it will keep shutting you down. Eventually you will get fed up with it shutting...

You can still ride it, but it will continue to degrade until it’s dead. Then you will have to buy a new battery. Be careful on that thing.

I’m still trying to figure out if a Bafang SWX02 is rated at 250w, 350w, 500w or 750w. The only difference I can tell between the power ratings of the same motor is what part of the world it is sold in.

I watched a YouTube video yesterday that made me chuckle when the fella said that Chinese motor specifications are accurate to the nearest kilowatt. Many so called 250 watt motors are capable of running at 1500 watts if you are sensible with them and don’t let them overheat.

It’s a scooter. May get a better response if you post on a scooter forum.

Their B7 motor looks interesting for those who want a 750 watt rear hub motor and can stretch their drop out to 138mm. https://www.to7motor.cn/products/B7_Powerful_Hub_Motor_for_Mountain_E-bike/B7-138X

Does the battery come loose in the cradle? I have seen so many batteries with duct tape holding them down so they don’t shake loose on rough roads.

It’s incredibly difficult trying to find specifications for motors and controllers. I’ve had a good try at googling and I couldn’t find anything substantive either. I suspect that your findings are correct and your brainpower is sine wave only. And only the learning function works sensorless.

I can only think of a Z1010A 10 pin Julet extension cable hired wired into the controller.

Specification sheet says hydraulic brakes, but all of the bikes in promotional photographs and videos have mechanical brakes fitted.

In that price bracket I would say a Decathlon Rockrider ST100. Nearly every bike on the planet is manufactured in China these days. And don’t get seduced into believing the claims regarding range. Those figures are meaningless in the real world. You won’t realistically get 100km out of it...

Just post up a few photos if you get into trouble. A freewheel removal tool is only a few pounds from Halfords and a cassette removal tool is not much more expensive.

I think you have a freewheel. Halfords ebikes don’t come with top end components, otherwise they wouldn’t be able to keep the cost down.

It’s a shame you have a cassette rather than a freewheel. From your description it looks like the free hub has gummed up with muck and the pawls aren’t engaging properly, so it needs to be cleaned out and regressed. Here is a video of how to remove a cassette freehub from a motor. Most of...