About tsdz8
Posted by Jump-Educational@reddit | ebikes | View on Reddit | 14 comments
Hi everyone, I installed a TSDZ8 motor on my bike, and I have a brake cable that runs under the bottom bracket. I left some space for the cable, but when I ride, the motor moves upward and gets stuck against the frame. Do you have any tips to keep the motor from moving? Thanks for your advice!
Prudent-Size697@reddit
It needs tightening to I think 40nm, which is VASTLY tighter than you probably expect. Its pretty hard to get it tight enough with the tool provided, but it is possible. Once it's tight I've never seen them slip. But it really needs to be very tight.
Jump-Educational@reddit (OP)
Yesterday I tightened it like crazy, I went with a hammer 🤣 we'll see!
Prudent-Size697@reddit
I didn't find I could get a good tightness with a hammer vs holding it in place and using leg power on the silly small spanner. It's annoying they don't provide two separate wrenches so you could use a seat post or a pipe to tighten with more leverage.Â
If I did this more than a few times I would definitely want a proper wrench or wrench head.Â
Zenigata@reddit
Did you use the bracket to brace the motor from the top of the chainstays?
Jump-Educational@reddit (OP)
Is there such a thing for the TSDZ8? It wasn’t included with mine. What does it look like?
Zenigata@reddit
Page 7
Jump-Educational@reddit (OP)
Thank you ! But it’s for TSDZ2. Is it work with theTSDZ8 ?
Prudent-Size697@reddit
No. It doesn't exist for TDSZ8
Ohm_Slaw_@reddit
I had a TSDZ2 that I used on a folding bike. It wasn't possible to use the kickstand brace they provided. I fashioned a brace out of an old torque arm, it worked pretty well. I am doing an install with a DM02, I got a brace with that one as well and I wasn't able to fit it. I used a piece of angle iron and it seems pretty solid so far.
With the TSDZ2 I wasn't able to tighten the lock nut tight enough to keep the motor stable. I created a rubber block using Sugru which worked very well for the powered phase. When I applied power the motor would push up into the downtube and hit the Sugru, but when power was released it would drop down. The torque arm handled this.
The apply/release of power would always wiggle the lock ring loose.
Look up 'BBS02 stabilizer" and you'll find some good things.
Remember that the power drives the motor up into the downtube, all you need to do is prevent the motor from dropping back down under it's own weight.
Jump-Educational@reddit (OP)
The Sugru idea is excellent!
sc_BK@reddit
It's a powerful motor, might be a good time to think about changing to hydraulic brakes?
I don't know if it needs it, but I made a little bracket to hold the motor in place
Jump-Educational@reddit (OP)
Yes, I have hydraulic brakes. Your mount looks incredible, thanks for the idea!
modus_bonens@reddit
I put two rubber/polyurethane wedges between frame and motor, then tighten down lock nut on motor. Should give enough room to route cables without pinching.Â
The Lekkie one nut is handy for getting that motor on super tight, if it continues to move. Only like $25.Â
Jump-Educational@reddit (OP)
Is there a Lekkie nut for tongsheng? Thanks for the suggestion