help - bottom bracket

Discuss light weight issues concerning mountain bikes & parts.

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Seph
Posts: 137
Joined: Fri Jan 20, 2023 7:08 pm

by Seph

n00b question here.
my bike had a SM-BB72, the only thing i found around all shops near-by was the model SM-BB71.
Basically looks the same, just the middle section seems longer... But the seller told me to use the old one.
Can i install whitout any problem?
ofc i'm ordering the same ad the default one, but until it arrive i definitely need to have smt fitted on my bike.

jefferyho
Posts: 1
Joined: Thu Jun 06, 2024 5:47 am

by jefferyho

n00b question here. geometry dash lite
my bike had a SM-BB72, the only thing i found around all shops near-by was the model SM-BB71.
Basically looks the same, just the middle section seems longer... But the seller told me to use the old one.
Can i install whitout any problem?
ofc i'm ordering the same ad the default one, but until it arrive i definitely need to have smt fitted on my bike.
Yes, you can install without any problem. Don't worry!
Last edited by jefferyho on Wed Jun 12, 2024 7:51 am, edited 1 time in total.

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reknop
Posts: 319
Joined: Wed Feb 25, 2015 10:15 am

by reknop

It is a pressfit BB86/BB92 bottom bracket.

Good aftermarket ones I personally use are C-Bear Cermaic Bottom Brackets and the CEMA Bearing Interlock Bottom bracket.
C-Bear has some nice chart that helps you choose the correct bb.

https://c-bear.com/find-my-bottom-bracket#bb-chart
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