Bb30 crank question/help

[ishaw]

In my tiredness I seem to have bought a bb30 crank by mistake.

In my defence, the picture had a threaded BB and a single direct mount chain ring so no visible signs of bb30 until it arrived.

So, what's the deal with it? I thought bb30 was press fit standard.

Forgive me, as I've not tried, but will it fit a standard BB shell? The BB is a rotor one, I need to do some research but wondered if anyone has any clue through their own experience while I do that research.

I know of bb386 and have cranks of this standard but these are not marked as such.

Thanks

 

[madjh]

I don´t understand, the BB30 press fit is the Bottom bracket, not the crank set. Other thing is you bougt some DUB standar or something from sram that don´t fit in a normal cranset 24 or 30mm

If you have a crank set with 30mm spindle you can fit on that BB if that BB fits the frame. If you have a press fit frame, you can fit some adaptors from Sram to conver to treath ones and go for the normal BSA non press fit standart.

 

[ishaw]

Crank axle is marked bb30 and pf30. Dub is different afaik.

Looking online, park tool site runs through the different standards and bb30 is listed under pressure fit section.

https://www.parktool.com/en-int/blog/repair-help/bottom-bracket-standards-and-terminology

I know of bb30 to standard ht2 shell converters, but didn't think a bb30 axle could run on a standard width BB shell?

I do recall seeing a thread on here detailing how it can be done, but can't find it.

Pics of crank and BB below if it may help determine anything.

 

[ishaw]

Found the thread: https://www.retrobike.co.uk/threads/modern-bb30-cranks-on-a-retro-frame-yes-you-can.424223/

Looks like it can work. Example uses a 68mm shell, I wonder it it will work on a 73mm?

Aside from the thread poster above, or even the poster, how did you get on? Without the preload adjuster, which my cranks don't seem to have anyway, did it all do up fine and there was enough bearing contact not to cause issues?