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    Help! Bottle battery has died..Burisch GT250

    It's a lot cheaper to buy a complete replacement than to get one re-celled.
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    S900 lcd alternative

    Make your own bracket out of a bit of aluminium sheet. it takesabout 10 minutes with a Dremmel. Mark out the holes for the LCD fixing screws first, then draw a line through them and another that bisects it at right angles, then mark the centre of the whole for the cap fixing. Open up that hole...
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    HELMETS - but different this time

    Your analysis is completely bogus. Those nations introduced compulsory helmets because they had a high death rate before they introduced compulsory helmets. The death rate wasn't caused by the helmets. The death rate comes from the riding behaviour, driving behaviour, infrastructure, culture...
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    Help locating FreeGo Controller

    Freego used many different controllers and wiring. You have to get the exact replacement if you want plug-and-play, otherwise, it's better to fit a KT or Brainpower one, which give you a lot more features and options.
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    Is the Yadea V7 Legal?

    Try one and you'll see. They have very high torque "250w" motors and a lot of very nice features, like lights that light up the road, very good hydraulic brakes, nice suspension, exceptional comfort compared with a normal bike, built in security systems (Eskuta) and decent storage.
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    Is the Yadea V7 Legal?

    It's correct as long as the bike is a pedelec. To be a pedelec, the motor must be rated at 250w or less (tick), it must have pedals that can operate it safely (probably tick), it must have a max speed of no more than 15.5 mph (tick), and the power must stop when you stop pedalling. It all hinges...
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    HELMETS - but different this time

    That's ridiculous. Are you more likely to injure your head while wearing a helmet or not? Helmets in no way contribute to deaths. they only preven some.
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    Mxus xf08c Hall sensors

    You only need the tiniest amount of epoxy to hold the halls still, so none should get anywhere else. the glue is only to stop them from moving, not to fix them in.
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    ORBEA GAIN WHEELSET conversion

    Assuming it's a sensored motor, you can use any controller you want. For cheapness, we normally recommend the Brainpower one with the S866 LCD, which costs about £40, but if you want a rweally nice controller, it has to be a KT sine wave one at about £70 with LCD3. We stick with these because we...
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    Battery lock

    Take the tumblers out if you can, then you can use any key.
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    HELMETS - but different this time

    There are all sorts of factors that cause cyclists to die. When you get run over by a juggernaut, a helmet isn't going to be much use. The above data, though interesting, does not prove any correlation between helmets and deaths. It would be very wrong to draw that conclusion. So, a helmet is...
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    Alternatives to flipping PAS disc?

    The magnetic field is directional. The magnet has to pass in the correct direction to switch on the hall. It's like a sprung-loaded tap. It onlty switches on the water if you turn it in the right direction. When you let go, it would spring back and switches the water back off. If you turned the...
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    Mxus xf08c Hall sensors

    Buy loose hall sensors. They cost nearly nothing. You'll struggle to find that exact hall sensor board as a spare part. You can use any bi-polar sensors, but there is a caveat. The sensors come in different versions. Some have internal regulators and some have integrated pull-up resistors. SS41...
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    Wheel nuts

    Aluminium, stainless steel and titatium stay shiny necause their surface oxidises in air. The very thin oxide layer that forms more or less instantly protects the rest of the metal from corrosion. Galling is what happens between the threads of the nut and the bolt. The friction and pressure on...
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    Alternatives to flipping PAS disc?

    It only works on the cheapo single hall type. Those type of sensors work simply and reliably. I can't understand what the advantage in dual sensors is. They only bring compatibility problems
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    Power cutout

    You don't have the connector that I mentioned before, so there is no line, no way it can be a problem and there's nothing to check with it. Next time you get a cut-out, look at whatever you have on your handlebars that tells you the battery charge state. If the lights go out at the time of...
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    OEM v Panasonic battery

    It says 15A. It's the only non-Chinese writing on it.
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    Wheel nuts

    One of titanium's weakpoints concerning the grade used for fasteners is its low fatigue resistance. When used in race cars and things like that, they're used as one-shot fasterners, i.e replaced if disassembled. Also. they're very prone to galling, especially if the thread is cut rather than...
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    Power cutout

    You don't have the connector.
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    OEM v Panasonic battery

    The controller only cares about the voltage. the battery needs to be able to provide enough current for it. As yours is a low power bike, that shouldn't be a problem. To be sure, look at the label on the controller to see what the maximum current is - probably 14A or 15A. The battery needs to be...