New High Torque IGH announced by 3x3

[Gionnirocket]

There is a guy claims there is a part can fail under high torque in the 3X3 nine hub and he makes reinforced part replacement for it. Anyone knows anything about it?

3x3 NINE GetriebeNabenNutzer | I am selling a reinforced replacement part for the planetary gear of the 3x3 Nine hub, which is the most common failure point under high torque | Facebook

I am selling a reinforced replacement part for the planetary gear of the 3x3 Nine hub, which is the most common failure point under high torque. Since 3x3 does not accept warranty claims, I have...

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Yeah i saw this and mentioned it in another thread where someone was switching their Ultra bike from Rohloff to 3x3.
Other than the seller I've seen no mention of this possible failure.

 

[speedub.nate]

I've got a 3x3 NINE on my project list for a cargo bike. Was going to transfer my Speedhub over and got surprised by the 142x12 thru axle. Doh!

I'm working through torque arm issues because Yuba played shenanigans with the rear brake mount dimensions, so the stock kit won't quite mesh with this frame.

I ordered up an axle plate from VLP to play with. I was caught off guard how large this axle plate is, after 25 years of playing with Speedhubs. I want to pay this step its due respect, because I am familiar with how the torque from Speedhubs can destroy frames if they're anchored improperly or if the dropouts weren't built with sufficient beef. I expect the 3x3 NINE hub will be similarly impactful since the torque output is a straightforward mathematical product of rider input, gearing, and resistance.

I have a selection of spacers, bolts, nuts and washers to try to mate this thing to a Rohloff torque arm. I think the torque arm will be my "safest" option but also the easiest to get working. 3X3 doesn't offer an off-the-shelf torque arm solution which is why I'm walking this down the DIY path.

Failing that, the fallback plan is to either modify or custom machine a new brake adapter. The spacing is close and relies on the lower IS bolt to anchor this thing, but it also means removing quite a bit of material from the brake adapter.

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After getting an axle plate and a shifter box from VPL, the US distributor for 3x3, and a few small orders of spacers and such, I've come up with what I think is going to be a solution for getting this hub mounted the the Yuba Mondo EP8. This is an adaptation using a Rohloff torque arm.

I'm not 100% confident anchoring the torque arm to what is essentially an unsupported tube hanging out at the end of the frame, but it's 17 gauge steel, and I ran it by Rohloff and they didn't think it was a problem — so here we go!