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Press fit BB
 

[Closed] Press fit BB

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I have just bought. anew to me frame ( Production Privee OKA) ... it has. press fit BB.

Having done a little research on this (rubbish) concept , I am probably going Hope.
The frame states it's a press fir 68/73 ...
Hope offer a Press fit 68 or 73 ... so which one is it?
I am intending to use some old Shimano crank sets with a single single ring .... the actually BB width( empty) is 92 mm, so what does the 68/73 refer to?

Or is this a really stupid question?


 
Posted : 13/01/2018 7:58 am
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You probably need the [url= http://www.hopetech.com/product/press-fit/ ]PF41[/url] rather than [url= http://www.hopetech.com/product/press-fit-pf46-bottom-bracket/ ]PF46[/url], check the I.D. of the bottom bracket shell.


 
Posted : 13/01/2018 8:35 am
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The 68/73 refers to the shell width without the Shimano outboard bearings, add screw-in bearings and the overall width is 92mm...yup confusing. As you have press fit the overall B.B. width is, as you say 92mm (73mm shell + screw-in B.B.) so a crank with a 73mm axle length will fit.


 
Posted : 13/01/2018 8:59 am
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The other thing to consider is axle diameter, 24mm or 30mm?


 
Posted : 13/01/2018 9:00 am
 Leku
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https://wheelsmfg.com/bottom-brackets.html?bb_standard=6855

Wheels make some decent BBs. Using a 24mm axle (Shimano) gives you a coupe of options.


 
Posted : 13/01/2018 9:09 am
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[url= http://www.chainreactioncycles.com/shimano-xt-mt800-mtb-press-fit-bottom-bracket/rp-prod135902 ]This one, OP[/url]


 
Posted : 13/01/2018 10:11 am
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It states BB92 as the fit ....
And the Hope on states its comparable ....
The Shimano one is very cost effective .... but is it robust?
Thanks


 
Posted : 13/01/2018 10:33 am