Hello Bro's
A while back i crashed with my Super Soco TC so its time to upgrade the soco... The soco is 3 months old and already want to change things on the bike! Just Hobby 😉
I already had a handlebar for the super soco and wanted to change the handlebar as many as you want. I just don't like the brownish color on my bike. So i ordered a new seat and also TS handlebars for the TC. But i don't like the standard handlebars so want to have aluminium ones on my bike. This is a problem! (for most), why?! The soco bars just suck 🙂
So i teardown the handle bar and looked at the function of the throttle bar. The first problem i encounter was the tube size of the bar. The bar is build up into a few pieces of plastic. The functionality is not so a problem, it works oke but the plastic tubes are simply to thick in diameter to put new handles on them.
First i took a scalpel to cut of the rubberish material of the throttle bar. And measured the black and white tubes. These change from diameters!!! The beginning of the white tube is 27.20 mm the black tube you see is 29.20 mm in diameter. This causes a problem to put new handlebars on the throttle bar! As new handle bars are 22 mm and 25 mm in diameter so you can't get new ones on the bars...
So i grinded the handlebar down a bit because when i would use the lathe it will brake for shure. While grinding the bar i saw after grinding 1 mm off in diameter that the bar was already showing white spots where the black and white tubes were glued. The next thing that happened is, you already guess! I broke the white tube from the black one!
So i decided to tear down the whole thing to see how the bar works. See Photos! There is a spring inside that makes the handle goes back to its original state and some grease for smoothing the rotation. Also i saw a little metal bar. I'f measured the cables of the handlebar and it turns out it wasn't a potentiometer as i thought. It turns up that the metal bar is a little neodymium magnet! So its a kind of sensor only not sure what kind of sensor. Probably a Hall Effect sensor. So...
The idea is to get some information about the sensor and use another way to get the throttle bar working! Did anyone measured the sensor in working conditions?! As soon my new handles arrive ill connect the oscilloscope to the connector of the throttle bar and hope to see what signal ill get. I could try 5 volts on the red and black wire for test and hoping to get an output signal on the green wire. Didn't test that yet!
It would be fun to have standard motorcycle bars on my soco so that i can use any bar on my bike i want.
Because we all use the unlocked method for the soco: for the Dutch riders when it works you could tap the hall sensor from the wheel to make a limiter for the rollerbank in combination with the throttle bar to limit the max speed for max an hour or so.
So any tips about the sensor would be cool! And ill get back on it need to do some testing...
Christian
Update 07/03/2020:
I ordered something new after doing some research and come up with a nice solution. First i wait when i got it and then test it out on the bike and post the results. If its oke you can add any handlebar you want!
While on the subject of handles: does anyone knows will the TS (black) throttle handle work on a TC ?
@rakac I ordered a set of TS handles for my TC ill let you know, im sure it will fit. Hopefully! 🙂
You can use a 3-pin generic ebike throttle, thumb throttle or whatever using "hall" signal I think because the three wires are +5v, -5v and signal. Signal is idle at about 1v and when its 1,3v it starts to ramp up "acceleration" or whatever your throttle input is at up to about +4,2v or maybe +5v
@flyingelectric Got a better solution for the throttle! Already ordered and can use any bar i want! When i got it ill put some photos on the forum! I think the problem is solved 🙂
The TC twist grip looks exactly like the generic 24V ebike kit I have in my shed waiting to go on an electric gokart. The internals are identical. Very much like this example:
https://www.ebay.co.uk/i/192619455494
Whatever the motor voltage, at least on ours, I measured the supply as 0v and 4.8v, with the signal sitting at 0.8 when "off" and going up to about 4v on fully open.
AIUI a hall sensor is designed for a specific supply voltage so you just need to make sure whatever you replace it with can work with whatever the TC is supplying on the red wire.
@mrj The solution i have now is to add a standard motorcycle throttle bar with an brake cable. A little box that will convert the analog brake cable to a digital signal using the standard hall sensor. The hall will be connected to the throttle input wire from the soco. I believe this will work. I ordered two pieces to try it out and hope it will work.
Hoping that i can mount the box somewhere under the hood 🙂
However the Super Soco throttle is one of the best I think.
Added new TS handlebars on the TC without any problems only that one piece of plastic was broken. Yesterday i bought a second TC second hand for modding. The bike was 6 months old and already had some issues but the price was good 2k euro. Some buttons where defect and then a small piece of plastic was broken... the guy where i get the bike from has painted the back verry bad but it’s oke 🙂 He broke the gas handle and there is minimal rust but the bike works! The batt plug was a bit molten just on the surface but he was 130kg an 196cm tall. So I think this is coused by his weight! All the other parts have beeing shipped so hopefully I get the rest next week!
Update: (Added the small windshield and footpedals back, front pedals comming soon the original mirrors back in place. Hoping the rest is comming soon!)
