New High Torque IGH announced by 3x3

[ava1ar]

Interesting that you don't find the gear step too steep being 24%

Kindernay VII hub has 28% gear steps and I have absolutely no issue at all with that on ebike. On non-electric bike this may be undesirable depending on the rider preference.

 

[Gionnirocket]

Kindernay VII hub has 28% gear steps and I have absolutely no issue at all with that on ebike. On non-electric bike this may be undesirable depending on the rider preference.

Electrons are the great equalizer.
At times I "should" briefly downshift but with the m620 having so much torque it's just easier (and more fun) to tap PAS up and power thru. But that comes at the cost of some efficiency and most rides I'm looking to exercise.
I also enjoy at times having to shift and adjust PAS quickly. It makes the ride more interactive and fun like driving a sports car with a manual transmission.

 

[Art Deco]

Mid drives are going to need something like this, to replace the standard drive trains.
There is a power limiting wall, past which the torque of the motor just chews up and spits out the drive trains. Something like this, or make the drive trains out of depleted uranium.

Too heavy, probably titanium next step.

 

[scrambler]

The solution for high power bikes is dual drivetrain, or integrated motor gearbox.

 

[whittemoregulch]

OK. I just tested shifting under load without motor assist and I was not able to upshift and downshift under load (I did not crank the twist shifter like crazy to not brake the stuff, but I put enough force after which shifting is unreasonably hard). I eased force on pedals but not completely stopped pedaling and I was able to shift but the shifting had significantly more resistance (both up and down) than shifting without load.

I would not practice shifting this gearhub under load.

Any more more updates or mid-term assessments on the performance, usability, reliability of your 3X3 setup?

 

[TPEHAK]

Any more more updates or mid-term assessments on the performance, usability, reliability of your 3X3 setup?

It keeps working just fine with full power of 3000W Innorace controller, no complaints. No oil leaks, no nothing, nice, crisp and dry. So far so good.

 

[Chazmo]

@TPEHAK how do you control the shifting of gears on this IGH? Is it some sort of remote switch, or is it automatic? And, if the latter, is there some way to set the cadence speed to force an upshift/downshift?

I’ve been curious about IGHs, but I’ve never had an opportunity to ride one. Bafang has a really cool 5-speed hub, but it’s automatic, and I honestly don’t think that would work for me. Not sure, though.

[edit: Never mind: I found my answer scrolling down this page: ]

System - 3x3

Learn all about the 3X3 gear hub and its associated shifting controls – electric or mechanical, clearly explained.

www.3x3.bike

 

[TPEHAK]

@TPEHAK how do you control the shifting of gears on this IGH? Is it some sort of remote switch, or is it automatic? And, if the latter, is there some way to set the cadence speed to force an upshift/downshift?

I’ve been curious about IGHs, but I’ve never had an opportunity to ride one. Bafang has a really cool 5-speed hub, but it’s automatic, and I honestly don’t think that would work for me. Not sure, though.

There is a twist shifter on the right handlebar with 2 cables go to the IGN. You twist the shifter one direction or another until it clicks to the next gear (you can feel indentations). You can twist and jump simultaneously over as many gears as you want and you do not need to keep pedaling during the shifting processes.

 

[Chazmo]

There is a twist shifter on the right handlebar with 2 cables go to the IGN. You twist the shifter one direction or another until it clicks to the next gear (you can feel indentations). You can twist and jump simultaneously over as many gears as you want and you do not need to keep pedaling during the shifting processes.

Thanks!

I see there are other bluetooth-based electronic shift controls too. Nine speeds sounds perfect to me for my off-road usage (mostly trails). If I ever get a hold of a mid-drive bike in the future, it sounds like this transmission is exactly what I’d want!!!!