What Bottom Bracket Standard?

Discuss light weight issues concerning road bikes & parts.
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Gutsyfungus
Posts: 11
Joined: Fri Jan 19, 2018 9:55 pm

by Gutsyfungus

I am buying a new frame (chinese Open Mould FM088)...
probably going to put either a Chorus or Record Groupset onto it.

My Bottom Bracket options from the frame manufacturer are...

BSA
BB30
PF30
BB86

The whole topic of which BB standard to choose is causing my some grief...
Anyone care to offer some advice.. (or point me in the direction of a suitable reference discussing the same)

Thanking you all in advance

Gutsy.

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Lelandjt
Posts: 525
Joined: Tue Jan 19, 2016 7:10 am

by Lelandjt

PF30 for lightweight. BSA if you're not confident in their tolerances or generally suspicious of pressfit.

by Weenie


octave
Posts: 188
Joined: Sun Jan 15, 2017 8:47 pm

by octave

Lelandjt wrote:PF30 for lightweight. BSA if you're not confident in their tolerances or generally suspicious of pressfit.
this


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AJS914
Posts: 3481
Joined: Tue Jan 28, 2014 6:52 pm

by AJS914

BSA all the way. The ultra torque BSA cups are almost idiot proof. I'd lose weight elsewhere if that is a concern.

Nejmann
Posts: 466
Joined: Mon May 06, 2013 6:25 pm

by Nejmann

AJS914 wrote:
Wed Jun 19, 2019 4:18 pm
BSA all the way. The ultra torque BSA cups are almost idiot proof. I'd lose weight elsewhere if that is a concern.
+1

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Orlok
Posts: 102
Joined: Tue Feb 07, 2017 12:36 pm
Location: Almere - Nederland

by Orlok

BSA
Once comes a time that you'll have a tailwind :D
Pinarello F10 - Ultegra 6800 - Carbonspeed C38 - Tubeless

Gutsyfungus
Posts: 11
Joined: Fri Jan 19, 2018 9:55 pm

by Gutsyfungus

Weight isn't a huge concern...5 grams iirc...

I'll stick with the BSA guys.
Many thanks for the feedback!

:)

Gutsy

joeyb1000
Posts: 211
Joined: Thu Mar 03, 2016 8:37 pm

by joeyb1000

BSA

moyboy
Posts: 447
Joined: Thu Aug 18, 2016 12:19 am

by moyboy

what happens if they want to get a THM Clavicula SE? :)
BB30

physeter
Posts: 42
Joined: Mon Jul 11, 2011 10:35 pm

by physeter

Another vote for BSA; three bikes and no hassle.

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kdawg
Posts: 125
Joined: Wed Nov 20, 2013 9:10 pm

by kdawg

BSA if they can’t do T47.
I'm left handed, if that matters.

ChiZ01
Posts: 312
Joined: Wed Jan 01, 2014 6:20 pm

by ChiZ01

PF30 for maximum crank compatibility

bm0p700f
in the industry
Posts: 4923
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
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by bm0p700f

Bsa. I would go as far as square taper too. Nowt more reliable than one of these.

by Weenie


alcatraz
Posts: 2209
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

The last three are lighter, fit more cranks and have larger bearings. The first one is reliable.

Bb86 is supposedly the stiffer option.

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