I would however like some advice about chainset options. I was going to transfer the Super Record Ti chainset from my current setup using Press Fit 30 adapters (46mm diameter). However, I am also thinking about the Cannondale Hollowgram. Is it possible to use this standard BB30 setup in a Press Fit 30 bottom bracket? I know that a standard BB30 has a 42mm diameter, but is there an adapter available or am I just asking for trouble? The beauty of the Campagnolo Press Fit 30 cups is that the bearings spin inside them, so should creak less that models where the bearings mount directly into the bb.
Will I really notice a difference in weight, performance or stiffness in going for the Cannondale over the Super Record Ti?
I will be using Super Record EPS, so aesthetically I guess that the Super Record Ti will 'go' better, but I am talking about performance here. I have a home for the Super Record Ti chainset on another bike, so this isn't a financial decision either.
The standard BB30 setup in my CAAD10 was trouble free.
I have not seen a lot of complaints specifically about the PF30 flavor of BB30, but it could be selective reading on my part? Hopefully not, since I'll be building up my supersix evo this week (hopefully) that is PF30.
bones wrote:If you do a search on Google, you will find that lots of people on this forum and others have had problems with BB30 creaking alot and have trained without success to make it stop. Not sure of the reasons why some have this problem and others don't.
I have had a lot of advice about the relative merits of Press Fit BB30 vs a standard threaded bb, but that's not what this thread is about. The decision to go Press Fit 30 is made.
As I said. For better or for worse, I am going for Press Fit 30. I did a lot of pros and cons weighing up before I pushed the button. I just wondered whether to go for the Cannondale Hollowgram, or standard Super Record Ti.
It would appear that the Super Record Ti option is better because the cups not the bearings themselves press into the shell, eliminating a potential source of movement and therefore noise. The bearings spin in the cups, not in the frame. The cups in a Press Fit 30 are thicker and fixed, whereas the bearing races in a BB30 are thinner, and more inherently flexible since they are really only there to encase the bearings and rely on the frame's bb shell for rigidity. The Press Fit 30 cups provide this rigidity themselves.
In theory, there is no wear on the Campagnolo Press Fit 30 cups, so they won't need to be removed and reseated as often as BB30 bearings, which must lead to some sloppiness over time.
Think it will be Super Record Ti for me then. Also looks better IMHO, and there isn't that much of a weight difference.
the total population of X
how many times the owner of the problematic X it is posting about it
how many non-owners are just repeating what they read on the internet
whether the owner of X was correctly using/installing/whatever it
i've got bb30, bearings go direct into the shell (steel), no creak, which proves exactly as much about bb30 as posts from people saying their's creak, i.e. nothing
bb30: if it creaks, something was made wrong, installed wrong, or is worn/damaged
There's not so much a design 'fault' with bb30, rather it's got a lot to do with the tolerances. Which are simply very, very tight.
PF30 is (relatively) a lot less so, hence why (in my experience in the industry) there's less issues with it.
fwiw I am another who had noise with bb30 and Campag, again due to the design of bb30, the Campag adapter cups, amount of purchase and the play that can result. Locktite and all.
So one less mystical internet figure who had issues, if you will.
I also altered the thread name to make a little more descriptive. As this topic has been discussed before, but not in isolation to a Campag cranks only reference. Search will bring up a heap more info
viewtopic.php?f=10&t=88811" onclick="window.open(this.href);return false;
last week i pass to SR 11, and leave the cannondale MKV, and they are working great, much better than the RED setup i had, front passages much but much better.
if you go with Hollowgram that can't be wrong.
solarider wrote:It would appear that the Super Record Ti option is better because the cups not the bearings themselves press into the shell, eliminating a potential source of movement and therefore noise. The bearings spin in the cups, not in the frame. The cups in a Press Fit BB30 are thicker and fixed, whereas the bearing races in a BB30 are thinner, and more inherently flexible since they are really only there to encase the bearings and rely on the frame's bb shell for rigidity. The Press Fit BB30 cups provide this rigidity themselves.
What exactly is your frame BB? It is either BB30 or PF30 and they are not the same.
If it is PF30, then you don't press bearings right against the frame in any case. If you plan on using a BB30 crank with it, then there is a plastic cup with a bearing inside it which is pressed into the frame. It means your SR "advantage" is kind of invalid, because you get some sort of cup in either case.
My new Moots RSL will have a Press Fit 30
The clue is in the first line of the original post.
Looks like the Press Fit 30 with Hollowgram might be an option. Thanks all for the info.
Next question which I am guessing can't be answered by anybody based on personal experience just yet - is there enough room in the bb shell for the Campagnolo EPS wires (3 of them) with a Press Fit 30 BB30 bb in place?
At least with the Press Fit 30 adaptors the size of the Super Record Ti axel allows plenty of room. The Press Fit 30 BB30 bb on the other hand seems to occupy most of the available space in there.
solarider wrote:My new Moots RSL will have a Press Fit BB30
The clue is in the first line of the original post.
Well, it's not a clue - it's a mess. There is no such standard as "Press Fit BB30" - it's either Pressfit 30 (PF30) or BB30.
solarider wrote:Next question which I am guessing can't be answered by anybody based on personal experience just yet - is there enough room in the bb shell for the Campagnolo EPS wires (3 of them) with a Press Fit BB30 BB30 bb in place?
I can probably take a stab at this. If you go with the standard type of PF-30 like the SRAM below, as you can see the shell of the assembly will be a problem.
On the other hand, if you use Cannondale's SRM PressFit 30 bottom bracket kit which uses two individual alloy bearing cups, then I think you will find there is more space for what you want to do.
ms6073 - Thanks for that. I thought exactly the same about the SRAM all in one unit, and the individual bearings with adaptors seem to be the root cause of quite a few problems. Minimising the number of non-moving parts that interface seems to be the best way forward, hence probably the original Campagnolo route. Without EPS, I think Hollowgram using the more bulky bb would have been best.
- Similar Topics
- Last post
- 2 Replies
- 597 Views
Last post by hambini
Mon Oct 16, 2017 1:26 pm
- 17 Replies
- 780 Views
Last post by AZR3
Fri Apr 27, 2018 3:43 am
- 23 Replies
- 881 Views
Last post by hambini
Thu May 10, 2018 11:26 pm
- 1 Replies
- 582 Views
Last post by CycloTron
Fri Jul 28, 2017 3:18 am
- 33 Replies
- 3463 Views
Last post by bm0p700f
Mon Aug 21, 2017 9:31 pm