Help finding bottom Bracket for 2017 Haro Steel Reserve 1.2

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Help finding bottom Bracket for 2017 Haro Steel Reserve 1.2
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Posted: May 12, 2021 at 23:31 Quote
Hello!
I have a 2017 Haro Steel Reserve 1.2 and I need a 19mm euro style 8 spline bottom bracket that will fit the reserve but I'm clueless to what works I tried reaching out to Haro and the only answer they gave me was 19mm euro style bottom bracket. To my understanding there should be more to that for finding a bottom bracket as I was checking out "19mm euro style bottom brackets" and there was a lot of extra measurements so I'm hoping ill get some help on here!

Posted: May 13, 2021 at 8:32 Quote
so your frame has a euro threaded bottom bracket shell that is 68mm wide

your cranks are a bmx style 3 piece, 19mm diameter axle with 8 splines

which means you need a euro threaded bb for 19mm axle

that leaves you with 2 choices for the bottom bracket that will be determined by the axle length

if your axle length is the normal (shorter) bmx length, roughly 5.625in, you will need an internal bb

if your axle length is a little longer and made to be used with mtb style parts, roughly 6in, then you will need an external bb

just looking at your current setup and measuring you should be able to tell which style is needed

internal
https://www.profileracing.com/product/euro-internal-bottom-bracket/

external
https://www.profileracing.com/product/euro-externaloutboard-bottom-bracket/


if i had to guess i would say your cranks are likely designed for bmx use and would then use an internal bb


hope thats helpful, bb stuff is complicated with dj bikes because of the mix/match of bmx/mtb parts, so plenty of confusion to be had, if any more q's ask away


 
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