HI all, I'm Mick! I live in Newcastle, NSW, Australia.
I've had a TSDZ2 for many years. Someone else had it for a while, it was stolen then recovered a year and a half later! It now has around 3000km on it.
About a year ago the performance really dropped off and after some diagnosis it turned out to be the little one way bearing/clutch in the blue gear slipping and wearing on the shaft.
I've always really disliked the way the TSDZ2 drives the motor when you are pedaling without pedal assist eg. you have a flat battery. It's happened to me several times, and it seriously feels like riding up a never ending hill. The TSDZ2B fixes this by moving the location of the one way clutch away from the motor/blue gear and out to the main gear. It makes the whole setup more robust and better able to handle extra torque. So I really wanted to upgrade to TSDZ2B.
As I was going to have to replace at a minimum the shaft and the blue gear, I started looking into the differences between the TSDZ2 and the TSDZ2B. The main differences are:
- The main gear,
- The white gear instead of blue,
- The spider, and
- The case and cover (4 screws vs 3 and an o-ring seal)
All the parts from the TSDZ2B will fit the TSDZ2 with the exception of the cover an seal, so I 3D printed my own. Now I have a TSDZ2(B). I've published the files on my Printables store. If you're interested go have a look here https://www.printables.com/model/1388714-tsdz2-to-tsdz2b-upgrade
It has totally been worth all the effort, it is so much better to ride and strangely, seems slightly more efficient, though that doesn't really make sense.
I've had a TSDZ2 for many years. Someone else had it for a while, it was stolen then recovered a year and a half later! It now has around 3000km on it.
About a year ago the performance really dropped off and after some diagnosis it turned out to be the little one way bearing/clutch in the blue gear slipping and wearing on the shaft.
I've always really disliked the way the TSDZ2 drives the motor when you are pedaling without pedal assist eg. you have a flat battery. It's happened to me several times, and it seriously feels like riding up a never ending hill. The TSDZ2B fixes this by moving the location of the one way clutch away from the motor/blue gear and out to the main gear. It makes the whole setup more robust and better able to handle extra torque. So I really wanted to upgrade to TSDZ2B.
As I was going to have to replace at a minimum the shaft and the blue gear, I started looking into the differences between the TSDZ2 and the TSDZ2B. The main differences are:
- The main gear,
- The white gear instead of blue,
- The spider, and
- The case and cover (4 screws vs 3 and an o-ring seal)
All the parts from the TSDZ2B will fit the TSDZ2 with the exception of the cover an seal, so I 3D printed my own. Now I have a TSDZ2(B). I've published the files on my Printables store. If you're interested go have a look here https://www.printables.com/model/1388714-tsdz2-to-tsdz2b-upgrade
It has totally been worth all the effort, it is so much better to ride and strangely, seems slightly more efficient, though that doesn't really make sense.
