Endless Sphere

Installing brake switches? I'm starting to configure my tandem for a TDSZ2, and I want to install brake switches. What is the preferred way to wire then up using a 850C display, and a 6 pin out from the motor? I had to do that as well, and didn't want to cut any connector from the motor or the disp...

https://sheldonbrown.com/gear-calc.html I know Sheldon's calculator. Very nice thing. Still it can only give a rough idea about what to expect. You need to ride the bike (especially with a motor) to see if the gearing works for your special demand. Especially if you never took much care for cadence...

Interesting, can you link to the frame? HAHA, that frame is SUPER old. Got it for my 20th birthday i think. And I'm turning 50 now :lol: The bike was called Klein Mantra Comp. Made unique by a rear suspension system that only worked when you sat on the saddle, and not while pedaling standing. Well ...

Sure. You're right. Haven't thought about that. But different crank lenght means different power. That's also the reason i asked for a higher cadence version. You pedal much faster with shorter cranks. The red stuff is high temperature automotive silicone. K2 Hochtemperatur Silikon, Dichtmasse, Dich...

It rolls. I may swap the 52T front ring for the original 42T one, as it's geared too high to my feeling. 16T in the back. The Alfine 11 is super nix. Adds some drag and is NOT as easy to pedal as a "regular geared" setup, but being able to shift gears at a stand still and having an almost ...

I finished my bike today. Have the Alfine 11 installed, and a 52T front ring, 20T in the back. But this is to high geared. I will revert to the original 42T next and try that. Also have 16T, 18T and 23T for the back to try and get the optimal setup.

No need for more current. The bleeding resistors are all that need to run current through the wires/connectors. And unfortunately they can't run more than that anyway.

Also ordered an Alfine 11 to get a straighter chain line, and enjoy 409% of bandwidth. Now I need to wait for the new spokes, as the wheel is already laced. Unfortunately the Alfine gear shifter and the XT 8100 lever don't really go together. I'm not sure if I can shift with it or need to 3D print s...

After I ordered the third brake adapter which didn't fit, I decided to build my own.
What for do I have a mill?

- Now user get errors if TSDZ2 firmware version is incorrect, if brakes are pressed at startup or if RX or TX communication is missing - this will help a lot when users by mistake exchange the TX and RX wires or some bad contact of that wires. Highly welcome. It costed my some time the first time i...

madin88 wrote: ↑

Mar 04 2020 2:34am

.. i have tricked them out a bit since i have 20s which are split into two 10s packs i just wrote down 36V x 2 and they took it

If that works, you could also say it's 20x 3.6V

that is the site reacting to a old cookie. ali is a annoying site. Especially the last week. They seem to have changed anything. It was not possible to go to "shipped items" in my account. Always brought me back to login page. And I have NO IDEA why the urge me to login EVERY time I go to...

My guess on the voltage would be a legality thing ? From memory over 60 volts is considered 'high voltage' and requires extra certification for road use - assuming they are considering a road legal model in the future I thought the same. And it's the only reason I can think of as well. You need to ...

sn0wchyld wrote: ↑

Mar 02 2020 4:42am

.. and yea missing the H in kwh is a goof ...

To be precise, they were missing the "h" in the kWh. IF we are talking SI units.
Sorry, but I was drilled to use correct units during my studies, or otherwise fail the exams

skestans wrote: ↑

Mar 02 2020 1:41am

Someone is fussy today.
Let me tell you about this formidable invention that is the scroll wheel! Any mouse has it nowadays, starting at 2$. I hope you figure it out.

Just don't do it. No need to quote quotes of quotes just because you are too lazy to delete unneeded stuff.

skestans wrote: ↑

Mar 01 2020 3:12pm

You could figure out which pins are the lines you need directly on the MCU and use pigtails to connect the programmer.

Could you please stop QUOTING WHOLE POSTS?

Today I wanted to install BRAKE sensors. I got the ones from pswpower, but they are a bit bulky, and I need to extend the wires to make them fit. II also have other sensors, CS1-G Magnetic Reed Switch Sensors. They are very small and have a little LED to show their state. They also fit perfectly on ...

Had a short maiden voyage today. All wires still hanging around, and no rear brake installed, but at least it moves. Even with the quite bad chain line all works fine. I'm still consider installing an IGH for a cleaner look. Power wise it's REALLY a pedelec. It supports nicely, and smoothly but it s...

... I yes, I am also buying the Blue gear for 20 euros on Aliexpress straight to my door, the only thing is that it takes some time and hand dirty to replace it inside the motor :-) Do you have a good reliable source on Aliexpress please? There are so many, and it's good to know the good from the b...

I wish there was some "secret" button combination .....so the bike is legal for everyone else. with OSF this is called "street mode" :) I know of street mode. But i can be enabled and disable easily by accessing the menu. To make a bike "really street legal" (at least ...

... I yes, I am also buying the Blue gear for 20 euros on Aliexpress straight to my door, the only thing is that it takes some time and hand dirty to replace it inside the motor :-) Do you have a good reliable source on Aliexpress please? There are so many, and it's good to know the good from the b...

I wish there was some "secret" button combination (that you can define by your own - combination of buttons and brake maybe) to unlock the unlimited mode so the bike is legal for everyone else. Also much better if you lend your bike to someone else and don't want them to speed around.

You got a 100-150W head light??? I'll have to check that link. My LED lamps are 10-15W max and are more than enough for all riding.
So jokes aside: if the output of that thing is 2A@5V then it will be ~0.2A@50V. So no issue for any wire you got installed.

The TSDZ2 doesn't really have the power to go beyond 25MPH on most bikes with 2" wide tires. Even w/o having tried it yet, but 750W peak is hardly enough to even reach 25mph (40km/h). From my other bikes i know it takes around 1kW to go that fast. But don't you think that gearing it a bit high...

Nothing beats the Rohloff when it comes to gear spread and Nm it can take.
Nexus Alfine 8 = 300%
Nexus Alfine 11 = 409%
Rohloff E14 = 526%

But also price wise it's unbeatable - just rough prices - you may get them a little cheaper
Nexus Alfine 8 = 140€
Nexus Alfine 11 = 300€
Rohloff E14 = 1.000€