Spindle Size???

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10/8/2018 6:15 PM

I have been needing new cranks but I need to know my spindle size have I have no clue how to measure it?


10/8/2018 6:32 PM
Edited Date/Time: 10/8/2018 6:38 PM

You could take the spindle off, trace a circle around the outer diameter and measure it with a ruler. Most stock cranks and cheaper aftermarket cranks are 19mm. Is your bike a custom or a complete?


10/8/2018 9:46 PM

It's really not important what's in there now, now would be a great time to install a new bottom bracket. Buy a new bb in the correct size for the new crank set up.


10/8/2018 10:17 PM

What cranks? Post a pic of the axle


10/9/2018 4:35 AM

It's probably going to be a 19mm or a 22mm but my money is on 19mm. But, yeah, a pic would help..... preferably something along side a common item for comparison (i.e. a quarter, a seat post, etc....)


10/9/2018 5:27 AM

Take a pic of the bottom bracket... I personally can usually tell what size by looking at the bottom bracket.


I don't crash, I do random gravity checks...

10/10/2018 11:23 AM

A new spindle will come with a new set of cranks. It should tell you what size it is. Just order a new bottom bracket at the same size and you know you'll be good to go.


10/10/2018 11:54 AM
Edited Date/Time: 10/10/2018 11:55 AM

buy one of these and measure it


if you're not sure and are not comfortable taking it apart, take it to your local bike shop. they will be more than happy to help you get sorted.


It’s all bmx