mzsupa5

Haha yes. Now in my 50th year of on and off MZing Yes I had Pneumant tyres on my first bike. Current one has a Honda TLS front brake. Now on Dunlop and Metzler tyres. My first bike was a Lambretta which had no functioning front brake at all for 6 months as an impoverished schoolboy I had no resources to fix it. Suppose I have survived by being aware of what stopping power I have available.

Thanks Yery useful info.

Thanks, however I will be left with a wire left over there are only 8 wires going to the motor. Controller has 9.

I can't recall ever having to make a crash stop from 14mph, just stopping pedalling is enough to reduce speed most times thans to wind resistance. Most of my braking is to trim speed on descents so the only additional demand on the brakes is from the weight of battery and motor and this is a linear relationship (kinetic energy half MV squared ) Yes rims and brake block wear out but V brakes are pretty good and the limiting factor is going to be tyre adhesion anyway.

I volunteer at a bike refurbishing charity and for reasons of liability they are reluctant to have anything to do with electric bikes. I have rescued a few bits and pieces from being scrapped. At present I have a complete Yose Power conversion kit apart from the motorwheel. I recently acquired the wheel from a purpose built Ebike which has 3 bullet connectors for power and a 5pin hall sensor plug (8 in total) rather than the 9 pin Julet connector of the Yose kit. Can this combination be made to work?

I volunteer at a charity that refurbishes bikes for resale and the don't really want to handle Ebikes because of warrantee/liability issues so I have been rescuing a few bits and recently had the good luck to come across a Yose conversion kit with a good battery. It was on a bike with 26" wheels and I want to fit it to a 20" whhel foder. The speedo/ controll unit was broken but I have an LCD display which came from another bike, (can't recall its wheel size.) The display lights up with the logo "Emu" but I can't see any way of getting into a settings mode when connected to the battery with an error message as no wheel or pedal sensor connected. It has an on/off button and power up/down. If I connect to a wheel (9 pin plug), will it know the size and limit top speed accordingly?

I volunteer at a charity recycling donated bikes which are fully serviced for resale. A few ebikes are donated which usually have dead batteries, no key etc so end up going for scrap afted stripping any usable non E parts. All of the bikes have been purpose built as Ebikes and with batteries locked in the wiring often can't be removed without cutting. I have been collecting a few bits and pieces to assemble a conversion kit. I have a 36v Yose controller with Jolet plugs (This was replaced by Yose because the light circuit didn't work) The bits I have rescued are the brake levers, LCD with separate power and and up/down power assist switch. also the section of loom connecting to these.All Julet plugged but cut off after all the above are joined. Crank sensor, not Julet but 3 wires so easy enough to fit a Julet. 9 pin plug to motor but cut about 700mm long. So....I need to make a connector to the controller from the battery. Easy enough. However need to create the harness from handlbar to controller. I will be going for a rear Ewheel and rack mounted battery. Are there any complete wiring looms out there. Doesn't have to be exact as I can modify to an extent but would prefer to avoid a complete build from scratch

Had a bit of a delay getting back to this. With all your help I have managed to get everything connected so that handlebar controller powers up, motor runs on the the throttle and headlight comes on. I have no crank sensor or wheel speed sensor to connect yet but have only one 3 pin plug not connected red, black and yellow. Black is earth and when power is switched on red is 5v and yellow 4.3v. Would both crank and wheel speed sensor connect to this. (Motor is 3 pin so no internal hall sensor.)

This video is very helpful

Thanks for your very helpful and comprehensive response. Blue goes to MS so possibly throttle as you suggest. Handlebar control has a 2x 2pin plugs, red blue and green black and 2 lose wires ,yellow and white. Light voltage is 36v I think? so easy to check. As well as the crank sensor I am assuming that a wheel speed sensor is also needed to limit to 15.5mph?

I volunteer at a charity that refurbishes bicycles and recently rescued some bits from a stolen/recovered 20" wheel folder with a view to converting a previously rescued Dahon folder. Unfortunately because a lot of the wiring was inside the frame and had to be drawn out through small holes I wasn't able to record what connected where. Other bits had plugs missing and twisted wire connections. So what I have is a Bafang 8Fun rear wheel with 3 pin connector. Minimalist handlebar controller with On button, 3 assist levels, battery monitor and light switch. Twist throttle, and one brake, motor cutout switch. I will need to get a pedal crank sensor and wheel speed sensor in due course but want to establish that the motor runs before getting in too deep so first thing is to get it to run on the throttle, which has 3 wires, red white and black. I have opened up the control box, a CE G3M20211-1592-16 to trace continuity from the various plugs to points on the PCB. Most of the red wires connect to a point mrke 5v, so presumably the 5 volt supplies apart from one that is connected to the point where the red 36v supply from the battery is connected. All the blacks connect to various grounds. There are two points BK1 and BK2 which I am guessing are the brake motor cutouts. The battery input wires and three motor wires are obvious. This leaves some mystery wires. The red that connects to 36v is paired with a blue that connects to a PCB point marked MS A set of three, Red 5v, Black to ground. Green to HV (or HU?) A set of three, Red 5v, Black to ground.Yellow to VP (or UP?) A pair, Black ground, Green to POR. Does anyone know what MS HV VP and POR stand for? Thanks for reading , If you got this far :-) Tony

I swear by Mirrycle mirrors and have them on all my bikes. Fold out the way and the joints are stiff enough that the mirror won't shift on bumps

Hi All. owner of A Cube hybrid (whose battery failed one week inside the warrantee period) and converted a DahonSpeed folder using an Ebay Yose Power front wheel kit, 36v, 250w. Current project is to do a second Dahon using salvaged parts around a Bafang 8Fun rear wheel.