I finally took my ebike for a test ride.

[PCeBiker]

I did manage to ride at 32 kph using both chainrings, and every gear (except "8th") using just the mid-drive.

And with the wheel in the air it will spin at 87 kph in 14th gear,..







I found out that my motor has a no-load rpm of 100 and 83 under load.

It took over 200 watts to spin the wheel that fast, so that may actually count as a load test?


I think that I might have enough information to calculate the best gear to use?

I have no need to go 87.8 kph, but I'm pretty sure that I want that RPM?

So I think I need to change my gear ratio by ~2¾ (87.8kph ÷32kph =2.74)


I'd like to use the middle cog (4th gear) on my freewheel and my 42t chainwheel.

I'm gunna try and plug my numbers into a gear calculator.

 

[stompandgo]

I would add 2-3 links. The rear derailleur cage, even on an entry level RD like an Acera, can do a decent job on the small-small combo with the cage tilted back at a 70 degree angle. It can handle more chain.

 

[PCeBiker]

I would add 2-3 links.

I might as well try it.

What would have been smart is to not have removed all the extra links in the first place.

Now I gotta put em back on, and wreck my non-reusable Missing Link while I'm at it.


Ohh well, I can practice pushing pins in and out without binding them up.

 

[stompandgo]

Yes, and you can reuse the missing link at least once.

 

[PCeBiker]

Yes, and you can reuse the missing link at least once.

Ohh??
I thought it might break or not snap back together or something?

The reusable link doesn't have the same dedent in the outer plate.



KMC says do not reuse chain pins, but I'm gunna go for it.
Like you said, just make sure the link isn't binding.


And my chain link tool arrived today.
Let's see if I can remove a missing link without bending the handles??