Press fit BB's...
 

[Closed] Press fit BB's - Tell me about them...cause I've bought a bike with one!

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Getting my new Giant Anthem tomorrow and it comes with a Press fit BB. From another thread on here it appears that they are either rubbish or just another stupid change for the sake of it?

Ta


 
Posted : 11/08/2011 2:39 pm
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Certainly seem to be more of a faff to change compared to the screw in sort.. had to get another special tool for my Zesty..


 
Posted : 11/08/2011 3:38 pm
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had them on my zesty - was often difficult to get hold of replacements at reasonable cost. seems easier now. does need specific tool to remove - can borrow mine if you are near Leeds.

Superstar have just started making replacement ones.

Certainly no better that HTII - different for different's sake.


 
Posted : 11/08/2011 3:42 pm
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The BB's may offer no better performance, (unless it's the larger BB30), but the actual frame is stiffer where a lot of stress is put through the frame, as the BB tube is wider. So the benefits to the bike as a whole are great.

As far as fitting and removal, they are a doddle compared to screw in BB's, you can install and remove them without any special tools, (hammer, blocks of wood, vice & drift!), just like you can for a headset or suspension bearings.


 
Posted : 12/08/2011 10:22 am
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frogstomp - how's the zesty going? are you enjoying it? new BB holding up OK then?


 
Posted : 12/08/2011 10:47 am
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Superstar have just started making replacement ones.

This may not be the best information.

Superstar bearings are known for being crap.


 
Posted : 12/08/2011 10:51 am
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R.lepecha - Member
Superstar have just started making replacement ones.
---------
This may not be the best information.

Superstar bearings are known for being crap.

I actually laughed out loud when I got this weeks Superstar email that detailed their new Pressfit BB's. The combination of general problems with pressfit BB longevity + Superstar quality and support is going to be an epic cluster**k.


 
Posted : 12/08/2011 11:04 am
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shouldn't that be cluster***k?


 
Posted : 12/08/2011 11:25 am
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shouldn't that be cluster***k?

Indeed it should.


 
Posted : 12/08/2011 11:27 am
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[b]cha****ng:[/b] frogstomp - how's the zesty going? are you enjoying it? new BB holding up OK then?

Loving it! Got a set of Flows on it now and off to CyB at the end of the month - can't wait..

The bottom bracket's doing OK.. once I'd re-greased it.. will upgrade it to some decent bearings once these are shot..

๐Ÿ˜€


 
Posted : 14/08/2011 9:47 pm
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How odd, I just posted a tweet a few minutes ago about my experience with press-fit BBs:

Shimano Press-Fit BBs. First one lasted 462km, second one lasted 414km. Wonder if I can glue a UN-72 in there?!?


 
Posted : 14/08/2011 9:58 pm
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nice one frogstomp, it is surprising how much life you can eke out of those press fit BBs even after they start stiffening and grinding!


 
Posted : 15/08/2011 2:12 pm
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My first one didn't last long, my replacement one has lasted ages (over a year). Bear in mind on the Zesty a lot of the issue is water getting trapped in the frame in the BB shell so it's not all the BB's fault - might apply to other bikes to. The tools are a rip-off but a lot of people have made their own or bodged it with a headset press etc.


 
Posted : 15/08/2011 3:14 pm