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Information and reviews abut 29ers sold by the bigbox stores now

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Genesis Onyx (onex) BB size?

Sat Sep 21, 2013 9:46 am

Hey guys! I recently picked up a 29" Genesis onyx from walmart in the markdown section. I have two Kent la jolla 26" and they're just too small for me. Anywho, i want to make it a nice little cruiser and my first step is sealed bottom bracket and new cranks and pedals. A few years back i used to be huge into bmx so im familiar with those parts. Im looking to get some cheap mission cranks on danscomp for like 50 bucks and im getting kinda messed up on the bottom bracket. Looked everywhere online and cant find the size. Dont have the tools to measure it myself, so thats out. I know its a euro bb, and im 'guessing' a 68mm? I was planning on getting this BB http://www.danscomp.com/products-PARTS/456056/Redline_Device_BB_Kit.html. Just wondering if any of you know the size for this beast. Thanks in advance! -Dan

Re: Genesis Onyx (onex) BB size?

Sun Sep 22, 2013 3:40 pm

I have tried both 67 and 68 sealed bottom bracket cartridges, so yes, 67 or 68 will fit

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Re: Genesis Onyx (onex) BB size?

Fri Jan 12, 2018 2:39 pm

The bracket I just took out was 68x120.
I replaced it with a shimano un55 68x118 and it worked fine.

Took me forever to find out the correct info.
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