20x110 Boost Front Hub With Same Dimensions as i9 1/1?

davec113 · Jul 28, 2024

I have a front wheel with an i9 1/1 hub I want to convert to 20x110, but it looks like there's no 20mm conversion kits for the 1/1.

The wheel is brand new, so I'd like to reuse the spokes. Is there any possibility of finding a 20x110 front hub with similar enough flanges?

If not, if anyone wants to buy a We Are One 27.5" Union front wheel with i9 1/1 15x110 boost front hub for a good price let me know.

silentG · Jul 29, 2024

The mountain Torch and Hydra front are the same except for a 1mm shorter/smaller (Hydra and Torch) drive side flange diameter vs the 1/1.

That 1mm isn't a big deal tbh so if it were my wheel that is what I would be shooting for and looking for a deal on a Hydra front (or a Torch but they aren't as easy to find these days).

The flip side of that would be a different hub and spokes as the spokes aren't the cost element there.

This is probably something you already know, but in case someone else finds this post - there are road and mountain versions of the Torch which aren't the same dimensions as each other, also two 20x110 front hub standards with the 20x110 boost having flanges that are further apart (some of the 20x110 can be addressed to be boost with an adapter).

davec113 · Jul 29, 2024

Thanks! There aren't a lot of 20x110 boost front hubs available, DT350 at $113 is one of them, and the brake-side flange is the same dimension, 58mm. Drive side is different, 46 vs 58mm, so I'd need new spokes, but I can reuse half of them.

I got a really good deal on the wheelset but just assumed I could switch to 20mm on the 1/1, oops. I'm not looking forward to rebuilding the wheel but might as well as there aren't a lot of front wheels with 20mm boost hubs anyways.

The OEM spokes are 274 and 270mm, so I'm guessing I need 16 more 270s to replace the 274s to account for the larger flange on the DT350...

Dougal · Jul 29, 2024

It takes a big variation in hub flange to change spoke length much. You'll be fine with anything that is close.

67King · Jul 29, 2024

That's what I thought when I went to change a 100 to a 110, and bought the same model hub, only a 110 width. I was wrong, the spokes were 3mm too short, I could not get the wheel laced to save my life until I bought new spokes.

silentG · Jul 29, 2024

Did you ask I9 about it?

They might tell you that you are out of luck but maybe they would know a way to get there as it seems a little bit silly that the other hubs they have can do it but not the 1/1.

davec113 · Jul 29, 2024

Dougal said:
It takes a big variation in hub flange to change spoke length much. You'll be fine with anything that is close.

12mm diameter difference, so significant... EDIT: equates to a 2mm difference in spoke length, that would bottom the nipple so I'll need new spokes.

silentG said:
Did you ask I9 about it?

They might tell you that you are out of luck but maybe they would know a way to get there as it seems a little bit silly that the other hubs they have can do it but not the 1/1.

No, but there's no option for a 20mm 1/1 front hub anywhere, the 46mm flange on the drive side is too small, I'm pretty sure it's not possible.

20x110 Boost Front Hub With Same Dimensions as i9 1/1?

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