Those may well be the ones I read about somewhere. If they are indeed soft or likely to become a problem at some point then best to change them to something better when in there. It is certainly something I will keep in mind for the first time I have cause to open mine up and changing them to something you can get a good purchase on when needs must is no bad thing.
Lots of variables but the New Forest isn't known for its big hills. I'm getting 60+ miles range in a moderately hilly area but I'm also putting in a moderate amount of effort. That's with a 10ah 48v battery with Samsung cells.
The bearings can I think be added without opening the case, at least two of the three. I plan to do just this but no time before holiday. Sooner or later you will need to open the case for maintenance, depending on your supplier, they may or may not still honour the warranty. Given that a degree of maintenance is required then I think reputable suppliers will support you so long as you don't do anything stupid. My supplier suggested I replace the blue gear and supplied one under warranty so I'm guessing they are ok with me opening the case.
I need to chang my gearing, but a lot depends on your hills. I regularly need to climb long 16% hills so my current 28t cassette and stock chainring are a bit too highly geared. I only currently have 7 speed. I'm 1st going to try a 32t cassette and 36t chainring - that should easily get me up those hills. I don't particularly feel a need to tackle the really steep local hill which is a sustained 25% killer...
From your experience, I expect that the battery I have bought for my wife's bike to be more than enough. There's no chance she will cover any more than 10 to 15 miles at most and even thought the paths are hilly, the battery should still have sufficient capacity to meet those needs. She will of course put in some effort herself to help out but initially she will probably be on the higher assistance settings until her level of fitness improves.
I bought mine from PSW Power simply because I am on a tight budget, I have two bikes to convert and their price was the best I could find for both the motor and the battery. I contacted them after placing my order with concerns about the measurements given for the battery. They were very courteous, sent me what I needed and offered to change the battery if it didn't suit. they also gave me permission to open the packaging and test fit it to see if I could make it fit.
I'm not particularly well versed on road gradients and without that experience I cannot tell you what gradients I ride on but you show clearly that there are options. I will see how my wife's bike performs and will hopefully find out very soon. I could always strip my own bike down and fit the Tongsheng to it first and try it out with the tagalong etc attached but it has three or four cables running under the bottom bracket which I know are going to be a pain. What exactly to do with them is another area I have yet to research.
I would fit the motor and try the 7 speed before deciding on next move. You may find a bigger cassette (depending on your current cassette) and a single smaller chainring (e.g. 36t) will be sufficient. It will limit your top speed, but I get the impression that's not so important to you?
That is an improvement then I am going to make as soon as I get the bearings. Is it one extra per side then?
I have to admit I don’t understand what you mean here. Am I correct in thinking that when you say for instance 8 + 8 you mean that you could only avail of 8 out of the ten gears on your cassette on each of your two chain rings i.e. 8 gears using the larger chain ring and 8 gears using the smaller?
Plenty of different ones to experiment with for as little money as possible. That’s a good idea!
I believe you are correct. See what I’ve got first and build upon that until I get it where I feel it is as good as can be.
It’s been a problem for quite a few years now but I only recently went to see what was going on with it. Using stairs, getting up off the floor, pulling my boots on, pressing down the clutch in the van etc etc were oftentimes painful and always irritating. If you’ve even seen a giraffe getting a drink then it looks something like that when I really don’t want to have to kneel down. I’ve been doing unweighted squats as directed by the doctor but I’m in line for some physiotherapy as well once I make it to the top of the waiting list. No doubt weights will come into play soon enough. From what I can gather, the muscle wastes away, the kneecaps are no longer locked in place and that’s when the fun begins hence my desire to strengthen up that area and see if it helps.
We will never be out on the road with these bikes and there is only so much speed that is practical when rattling over rough forest fire roads. The surface is loose and there are people and dogs just around a blind corner on occasion. I’m 52 years old with a tagalong bike on the back and it’s little rider with my wife cycling alongside so I couldn’t sail on if I wanted to. That’s not to say I mightn’t enjoy a little speed while cycling there alone but as you rightly point out, there are options available. Would you think the TSDZ2B is strong enough with improved gearing to assist in pulling all that weight on hilly paths, or should I simply be looking at something with more torque as a starting point like the Bafang?
I’m actually quite excited at the possibilities. I know my wife’s bike will be more than adequate for her with the TSDZ2B motor fitted and if she struggles with it, I can change the gearing to suit.
That’s the thing. It is so difficult not to overdo it. A little heat gets into the joint, things loosen up and away we go. Then we spend the next three days hobbling around the place with more damage done. I have friction in one ankle from a bad early childhood sprain and every so often it flares up which is much the same as being welded solid. Little and often is probably the best approach.
@AJ_P
Hello Tony,
I'm a long way from perfection myself and as for getting old, youth is simply a memory that is disappearing rather rapidly in my rear view mirror.
www.sciencealert.com
Why oh why did you post this Gurney? Now I'll be mooching about depressed all day waiting until the sun's past the yardarm and I can drown my sorrows in a stiff one and one more and one more.....might as well kill a few more grey cells off.Depressing stuff:
Does IQ Decline as We Age? One Type of Intelligence Peaks in Your Twenties
Many of us are familiar with the idea that as we get older, we become less mentally agile; but is this something that can be measured – does our IQ decrease with age? If it does, at what speed does it do so? Do different types of intelligence decline...
... use it or lose it
So long as memory itself doesn't disappear with it you're OKyouth is simply a memory that is disappearing rather rapidly in my rear view mirror.
Less battery current it's true. With the motor doing the same climb and speed as before, it's getting the same phase current as before and just as hot, with the controller converting as needed according to the battery voltage.
The motor has just arrived. The battery will be another day or two I imagine. I have my wife's bike ready for fitment apart from a cable under the bottom bracket but I would like to fit these additional bearings before using the motor.
