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Yes but in this case I'm not sure just how much deeper the indentation could be made without collapsing the aluminium chainstay. It certainly isn't going to give me what I would need but I do have some good news. As I said before, rotating the motor downwards a little so the protruding screw...

Hello Sturmey, There already is a factory indentation on the frame there. With the motor in the correct orientation, the little projecting piece sits just within it but in order not to hit it, I have to shim by 6mm. Rotating the motor allows me to use only 4mm but the chainline still looks...

If I fit the motor in accordance with Tongsheng’s instructions which involves having the frame block bolt locked at it's lowermost position, one of the bolts that fits into projecting sections around the circular housing behind the chainring touches the chainstay. That requires 6mm of shim...

I have fitted the motor to my bike and in order to avoid touching the chainstay, I had to add just over 6mm of shims to get a sliver of clearance. I suspect that this will rule out a second chainring as I don't think the chain line is going to be ideal even for what I've got at the minute. I'm...

I bought it as a 48v 15a but I can't open the case without voiding the warranty. If that's the only way to be sure then I'll just have to take it on faith for the time being. All the best, AJ

My front derailleur is a triple so if I go down this route that's at least one thing I don't have to buy. I just bought the motor and battery for my own bike so I'm hoping to get going with the conversion soon. I have the bottom bracket stripped so with a bit of luck I will get some time to...

I actually have eight gears on the back wheel so it will be interesting to see if that will work with the standard TSDZ2B chainring. For some reason I had it in my head that there were only seven. I have just bought the motor and battery for this bike so I will see shortly. All the best, AJ

For anyone interested, here's another dual chainring Tongsheng conversion just posted.... A longer travel front derailleur is required so an update will hopefully be provided soon. Regards, AJ

Hello Sturmey, Would you mind telling me how many gears you have on the back wheel and can you access all of them with the dual chainring set up you have? I'm debating whether to go with a dual chainring or change to a 9 speed cassette for which I would have to replace the rear wheel. All the...

Are you going to try a 34 and a 42 together? I got a puncture in the back tyre of my bike so took it off for the first time and discovered it doesn't have a cassette back there. If I want to do any experimentation in that area then it's going to mean a new wheel. At least if a functional dual...

I'll be very interested indeed to see how you get on. If I get around to it first I'll be sure to let you know. All the best, AJ

You mean a non dished one? AJ

Hello Nealh, That's great to hear! Non dished I presume? Does it work well? Would you have any pics of your set up to help us form a plan for our own bikes? All the best to you, AJ

Here's a very interesting video on the subject of dual front chainrings on the TSDZ2 where the chap appears to be happy with the result he has achieved. It opens at the appropriate part. You've probably already seen it but for anyone who hasn't, he has fitted two non dished chainrings, a 34...

I don't like the idea of the battery being on full display though in our case it will never be left alone long enough for anyone to steal it. Apparently though there are such specimens among the human race and if an opportunity presents itself there is always someone willing to seize it. I...

Hello Cadence, Simple, effective and much, much quicker to complete than mine. It looks spot on too and probably cheaper to make what with the price of electricity needed to run a welder! The only problem I had really was that the pannier is made of steel and aluminium thus limiting where I...

Here's some I took the other evening while out in the forest. Apologies for the lack of focus but I could not see the screen on my phone due to the sun. Of course it focused on the background rather than on the subject but there you go. I used M5 x 20 button flange head stainless bolts to...

Right, a little update.... I modified the rear pannier on my wife's bike by cutting out what was in the way and welding in an additional piece of steel to support the raised base I made for the battery. This lifts the battery about 25mm above the pannier frame thus allowing me to fit a pannier...

As long as whatever I finally choose to place the battery in is strong enough to take a knock, I won’t worry about it being particularly waterproof. Neither bike will be out on a wet day as we will only use them on off the beaten paths for exercise and leisure. You’re right. There has to be a...

Those look good. Would do no harm in the right situation for a bit of belt and braces peace of mind. I'm trying to keep the bike as light and manageable for my wife as possible. She's not the most confident on it and bulk will definitely receive a negative reaction from her. The kickstand that...