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PostPosted: Thu Jun 26, 2014 2:33 pm 
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Joined: Sat Feb 08, 2014 4:22 pm
Posts: 30
Location: Minsk, BY
Bought new bike (factory assembled) and noticed the gap between bb and cup edge. Is it ok or not? Thanks.

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PostPosted: Thu Jun 26, 2014 9:19 pm 
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Joined: Fri May 20, 2011 8:48 pm
Posts: 35
No! Before you rack up significant miles, get it pressed in. Also make sure that the cup sits square on the BB shell (pre-supposing that the BB is in a square angle). You may want to argue that the cup and the bearing is damaged. Hopefully the BB is not!

If you have CULT bearings, it'll be expensive to replace.

This is a great example of why I (and probably a lot of other weenies) hate a pressfit type BB!

Good Luck ~J


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Posted: Thu Jun 26, 2014 9:19 pm 


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PostPosted: Fri Jun 27, 2014 9:08 am 
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Joined: Wed Oct 06, 2004 6:55 pm
Posts: 2364
Location: Vienna, AUT
Not only is that not full pressed in, but it seems from the photo that it is pressed in at a slight angle (not itting square as joe mentioned above).
I am surprised that the hirth joint on the Campy cranks even meets up fully. That is a terrible installation job if you ask me.


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PostPosted: Fri Jun 27, 2014 1:42 pm 
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Joined: Sat Feb 08, 2014 4:22 pm
Posts: 30
Location: Minsk, BY
Thank you guys! Just pressed it to the limit, looks tight and square.

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PostPosted: Fri Jun 27, 2014 4:38 pm 
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Joined: Sun Jan 03, 2010 4:58 am
Posts: 722
From my understanding if the cups are pressed in, they can come right back out. There are a lot of threads about BB30 and PF30 adapters and Campy cranks. Lots of answers using locktite, epoxy, and some home brewed efforts too. Since it is back in now, I would keep and eye on it.


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PostPosted: Fri Jun 27, 2014 4:48 pm 
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Joined: Sun Oct 05, 2008 8:09 pm
Posts: 1376
Location: Aix en Provence
Don't be surprised if it come back out on the first ride.


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PostPosted: Fri Jun 27, 2014 6:06 pm 
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Joined: Sat Feb 08, 2014 4:22 pm
Posts: 30
Location: Minsk, BY
LionelB, Butcher, you're right. Just made small 40k ride and cups came out even more. So I'm starting to search solution to my problem. Thank you.


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PostPosted: Fri Jun 27, 2014 6:23 pm 
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Joined: Fri Dec 11, 2009 10:38 pm
Posts: 1606
Location: Welland, Ontario
Praxis just came out with a PF30 to Campy UT adapter. I would not waste any more time with the Campy one.

Their other adapters come highly recommended.

https://praxiscycles.com/product/conv-bb-campagnolo/

_________________
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM


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PostPosted: Fri Jun 27, 2014 6:50 pm 
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Posts: 3437
Agreed... Move on quickly and save yourself some headache.
@Bikerjulio... (Or anyone) Have you had any experience with the Overtorque stuff yet?


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PostPosted: Fri Jun 27, 2014 7:00 pm 
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Joined: Tue Dec 23, 2008 2:57 pm
Posts: 824
Location: NYC
...."factory assembled" means nothing....any shop with a real mechanic should disassemble full bike and install properly (especially BB cups). If your cup has already slipped out after your first few rides then it is a sign IME that you will need to secure with Loctite 609 and proper activator. There are several threads on this forum on the merits of using proper Loctite gap filler. The Loctite method for BB press fit cups is recommended by many manufacturers (Cervelo, Specialized, trek, Cannondale, etc).
EM3

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PostPosted: Fri Jun 27, 2014 7:55 pm 
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Joined: Fri May 25, 2007 6:43 pm
Posts: 2758
Or if it's coming out already, what damage had it done to the seats?

Might be worth taking it back to the shop and explaining the situation.


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PostPosted: Fri Jun 27, 2014 8:11 pm 
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Joined: Fri Dec 11, 2009 10:38 pm
Posts: 1606
Location: Welland, Ontario
I'd stress not riding it at all since the bearings are going to go quickly with cocked cup(s).

Quote:
@Bikerjulio... (Or anyone) Have you had any experience with the Overtorque stuff yet?


Not practical experience. Only what I've found.

I like the simplicity of UT. And also GXP for the reason that no special tools required and quick to install and remove.

OT requires another set of special tools, which puts me off.

_________________
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM


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PostPosted: Fri Jun 27, 2014 8:24 pm 
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Joined: Sat Feb 08, 2014 4:22 pm
Posts: 30
Location: Minsk, BY
mattr, no visible damage yet.


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PostPosted: Fri Jun 27, 2014 9:04 pm 
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Joined: Sat Feb 08, 2014 4:22 pm
Posts: 30
Location: Minsk, BY
Since it is impossible to find Loctite 609 in my country, will 641 do the job? What do you think?


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Posted: Fri Jun 27, 2014 9:04 pm 


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PostPosted: Sat Jun 28, 2014 1:51 am 
Online

Joined: Tue Dec 23, 2008 2:57 pm
Posts: 824
Location: NYC
...which Loctite to use will ultimately depend on how buggered the BB's tolerances are. 641 has a slightly lower yield strength and recommended for smaller gaps, compared to 609 and 680. If your shell is only slightly off then 641 might do the trick. Be sure to use the recommended activator and then apply the Loctite liberally, set cups with a press and leave the press on for 24 hours. EM3

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My 2013 Cervelo R5


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