The real reason why SRAM moved to a 29mm spindle is the same reason why Shimano is on a 24mm spindle instead of a 25mm spindle. Standard 680x bearing IDs come in 5mm increments. Using 29mm and 24mm spindles means you can place a Delrin tophat in between…that prevents galling between the metal spindles and hardened steel bearing races.

I'll never remember ALL of that, but what a great resource to come back to when I need it in the future - Thanks !

Got to fix a broken crank bolt for a young friend, it's been confusing but your vid explained it well, now know what I'm looking for. Great vid.

I wish I had seen this sooner, super informative!!

You just need tis video to understand the current market for road bike Crank/spindle/BB. Good job

Great explainer, was eying a crankset that had bb30/pf30 wide written on the axle and was confused by it prior to this video- thank you

Very interesting informations! Thank you for showing and letting us know!

This has been extremely educational. Thank you!

This is a great run down thanks! I'm reviving an early cannondale 29er and don't have a clue what I'm looking at.

I hope I never have 30 cranksets of various sizes laying on the same counter in pieces. But if I do. I know who to call now. I find myself cross eyed after watching this video.Thank you.

Thank you! Since I usually only upgrade ever few years, it's easy to miss the iteration of size and design changes.

¡Maravilloso vídeo y gran explicación!, 🤩😍 para mí la bielas perfectas serían com motor BB30 extraíble, anclajes GXP 3 pernos. Muy buena exposición del tema, ¡felicitaciones!. 👋👍

Great job!! seriously!

I have two crankset with GXP in the profile picture here is the Omnium fixed gear ⚙️ crankset , and SRAM original 11 sp MTB GX. I love them both no issues with either crankset.

nice explaination !!!! love your content

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If you say GXP is a pain in the ass and Hambini says it's the second worst crankset, then it's definitely a no for me. Very informative video. Thanks

This was helpful. I have PF30 MTB with 73mm bb and the spindle measures 110mm from the edge of the crank arm to the end. This must be the wider spindle since I've ran across ones that measure less.

i try to fit gxp sram force 22 crank converted in 1x with a direct mount gear on my 2000 trek 73mm bb... ant the result is, the spindle of force is too short for my bike... there is any solution like a slim gxp bottom bracket?? thanks a lot

Old video so u might not see this but does anyone know if I can fit the raceface aeffect r crank arms only onto my bike which is using all sram eagle nx crankset or would I have to change the bottom bracket from the dub 1

clear as mud explanation shew! but thank you.

How long is the SRAM PF30 spindle that you took out and is free, by itself? Specifically road for use on 386 frame? Thanks

This one - that one, the road crank, the mountain bike crank. Mixing them up and moving them around! I feel like I've been watching one of those street scammers with 3 cups and guess which one has the ball under.

I could not find a where to buy a spindle DUB 100mm sram red crankset. This is not sold anywhere

Nice video and presentation. Love this episode. Well done. Question: I have BB shell T47 x 86.5mm deep in a gravel bike. What us the odd I may have problem with crank set spindle too short or too long? Spindle length data are hard to find and scattered, why?

Friend, can I use the left arm BB30 with a right arm with a DUB crown???

What is the length of a pf30 mtb spindle?

would DUB sram non-drive power meter fit BB30 grankset?

Still confused, but more educated. Swapping out my heavy SRAM Rival 2x cranks in my Niner RLT RDO. Going to a 1x11 or 1x12. It is a PF30, and the spindle on the Rival says PF30 and BB30. Point me in the right direction please!!

Great video thank you! I have a question. Can you replace the GXP spindle? I bought a gxp crankset that has 24mm aluminum spindle. Is it possible to replace it with a steel spindle? Thanks!

how wide is wide the BB30 spindle?

Hi BC, thanks for this awesome tutoriell! A additional question about running a modern Quarq Dzero Dub Powermeter with a Sram red 11speed etap BB30/386 crank (8bolt): I heard Sram says officially that "its not compatible. it would fit but the chainring(s) would be ca.1.5mm offset". My questions: 1. is this correct? 2. If it's correct, what is the reason for this? (is the dub spindle 3mm shorter or longer? - I have no other explanation)? 3. What is yout thought on this combination? Thank you very much!!

I currently use a sram gxp crank and Shimano bb52 and there's a wobble I think there's no spacers in there

I have bought an X01 Eagle crankset, what bb do I need to buy if I have 2022 lunar Sram dub GX cranks?

Since the ends of the spindles are the same between dub and pf30, am I right in understanding that you could change a pf30 spindle to a dub one and it would fit both crank arms? In the video you show that the spindle ends are the same and use a dub non drive side crank arm with a pf30 drive side crank. I have an old pf30 crank set and hoped to put it on my DH bike. For that I need the right spindle length (researching that now) and the dub width.

The one reason why I wouldn't buy any SRAM crankset (or any of the many Chinese knockoffs) is that I don't want to be forced to spend hundreds of dollars on a big-ass torque wrench for the spindle bolt.

Hello, Do know if SRAM BB30 (30mm) spindle like Stages D Spindle would work with Cannondale SL or Cannondale One cranks? In short are SRAM and Cannondale BB30 spindles interchangable if they are correct length?

i used a SRAM XX1 with 30mm short spindle with threaded bottom bracket in my old Cannondale Super V900, i only had to find a threaded BB for 30 mm and also file the flat sides of the frame until it fitted. carbon crancks, short 30mm spindle, and less frame metal means i saved lots of weight. Also can run dual crown

I have trek madone with bb90 how do I covert from gxp crank to dub for better bearings weight save

You are a real expert. Do you happen to know if you can use SRAM Force AXS ETap front derailleur with compact Campy Ultra-torque crankset?

I just wanted to put on a plain Ole simple crankset on a frame I acquired now I have to understand all this and hopefully order the right stuff 😅😅

Hi and thanks for all the explanation. I kindly ask you an opinion regarding 2022 Spark. Do you think is it possible to put the Xx1 Crankset with Quarq (dub standard) on the new Spark with Dub wide, working with spacer and maintaining 55 mm chainline? Thanks in advance! It will save me to buy a new 8 bold crank dub wide very hard to find.

So,,, SRAM BB30 has longer spindle than the original cannondale BB30? then can we fit SRAM BB30 road crank to BSA or BB386 frame if we have proper BB? One anoter question is, In case of 8 bolt patterns, can spider interchangable between GXP and SRAM DUB or BB30 crank?

Hi, I have a question and I'll be so glad to help so my case is I have a Sram truvativ descendent cranks with BB30 PF30 spindle but my new frame is internal threads standard wich means a normal DUB it's not working because it is 28.99mm how can I fit my BB30 spindle on it?

So if I have a bb30 pf and want to switch to dub 28.99 I would need a new bottom bracket?

I bought a Gxp crankset I’m taking out my bb30 crankset can I use my gxp crankset with my bb30 bottom bracket if use a bb30 adapter?

Hi, Do you know if the cannondale spindle is compatible with the bb30 sram? I need a longer spindle Thanks

Hi thanks for the video!! Do you know if the 8-bolt pattern used with powermeter is the same between GXP cranks and Dub cranks? I mean, a modern powermeter spider named for Dub cranks, with the 8-bolt pattern would fit in a GXP crank? Thanks!! Best,

Ok so the bb30 and bb30 pf30 are the same ones?? I got a little confused.. can you help me out with that question and thanks in advance

My bike has the SRAM GXP, Can I remove it and be able to change to one of the DUB ones without any problems?

Hello, is sram crankset dub able to apply for Shimano lip 8 speeds?

I'm trying to downsize the cranks on my snow bike. It's Dub with 76.5 CL and 100mm BB. Having a hard time finding what I need to drop the 175's to 165s..... How do you find the sizing without scrolling thru countless adverts?

Hi, my PM Dfour91 died and I need a new one. I would go for AXS Dfour which looks familiar with mine crank arms I used by now on Dfour91. My questions is do they fit correctly? Axs D4 spider and crank arms with spindle from my d491? Thank you in advance! Regards Uros

Can you tell me how Long is the treds on bb on non drive side?

So this being said, could I swap any dub MTB crankset out with another no issues? No BB swap? I’m assuming the answer is yes

Is there a way to remove press fit crank arms ? and replace them with other arms ?

Hi @black water cyclist. The video was great. I have an older sram power meter where the battery cap has cracked and has also stopped working. It's from a 2009 Fuji D-6 bike. Can I buy a new poser meter spider to replace what I have? Let me know if you need more info.

Very nice video！helpful for me！and...can cannondale bb30 spindles be used on sram crankset？They look the same.

Do you have a video on how to replace spindles?

Can we use Sram crank arm with shimano chainring?

friend! QFACTOR 174 CRANKS can fit a in a bike that had 168 q factor cranks. (BOTH DUB)

Really useful, thank you. I wonder if you can swap the dub spindle of a dub crankset by an PF30 and vice versa.

Can you put a bbbright crankset on a dub bb?

Now, if only I could make sense of boost, super boost, and super boost+.

What about "DUB Boost", "DUB Wide" and "DUB SuperBoost +" spindle lenghts to address 52, 55 and 56.5mm chainlines. The spindles are etched with "DUB or DUB SL", "DUB Wide" and "DUB SB+" to I dentify them. I believe the "SL" stands for Standard Length" not "Super Light".

sooo many proprietary "standards" - it's mighty good T47 is here

Do u guys know if i can take apart in 3 Pieces the sram dub ones?

GXP was bad, for engineering reasons (floating driveside bearing, no way to preload the bearings). BB30 was even worse and has rightfully died a long time ago. PF30 wasn't quite as bad but had tiny bearings so ate those for fun. DUB tried to solve that problem by shaving 1mm off the diameter, so basically the same and almost as bad. In summary bad, badder, not as bad, not as bad. Ultimately, avoid. Sram is doing some excellent things, in mtb and road, but cranks aren't one of them. Also when you say 'bottom bracket', in reference to the frame, then you should say 'bottom bracket shell'.

Aluminum spindle is sooner or later going to wear and be trash. Switching to shimano because of this

you dont shim a gxp crankset or any 24mm crankset on the axle! shim is done on the bb.

pls add dub wide

The real reason is so you have to buy a dub bb and can’t use aftermarket

......Sooo...I have Sram red cranks, PF-30 spindle, long version, 172.5mm. 53/39,Wanted 165mm. Cranks. Got my hands on a set. Had to send them back...came with the short spindle. No one knows what the heck i am talking about because Sram didnt even have enough courtesy for people to put a different model number on the shorter-or-longer spindle, they both say PF-30. So it would seem no one on planet earth has a long spindle, Sram red 165mm 53/39 crankset, PF-30 OR GXP, new or used, for sale, so that i can match the rest of the components on my bike. Oh, and if my A1 derailleur goes bad, they want $800. It would seem Shimano arent the only greedy, inconsiderate ones, after all.(Hammerhead)

I do not like GXP. I do not like Sram's HRD (Hydraulic Road Brakes) I do very mike like their eTap/AXS two button shifters.

Rubbish presentation you just wave bottom brackets around. You need to lay parts out and progress from one to another explaining each in turn. Pity because I want this summary. PS My Sram is 5 hole which you don’t cover at all.

Worst crankset ever!