So today I ordered a new Vuma Quad ceramic BB off of ebay. Since, I had the best luck with it, I hope it serves me well. I fear my creaking BB worries are all but over however. I really love the cranks. When they work properly, they are light, and stiff, and very nice. However the constant maintenance, is making me consider going back to a 24mm setup with a Chris King BB like I have on my bad weather bike. This bike never sees rain, or snow, and the Lightning cranks allow for a manual adjustment of preload, and I've tried it at many settings, and the creaking remains. I don't mind maintaining my bikes, but I ride them a lot, and I don't want to have to tear my bike apart several times a month.
Have any of you had similar issues? I really want to make these work, and keep using them, but it's pretty bad when the rain bike works better than my main race bike. Thanks in advance for any help or insight you may share with me.
Edit: 2015: darn near won the best South Island series (got second in age
-group)..woo hoo Racy Theremery is back!!
How many drivers does a buggy have?
So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.
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Re: BB's. They creak, too.
I recently bought a set from Phil Wood for my new BB30 frame and they are as smooth as my VCRC ceramic, they have 1 year warranty also. But you don't have to open them up (I was told not to). I didn't get alot of miles on this yet but I would recommend it for now due to the smoothness.
I wonder if there is something with your shell causing the bearings to not align right, which will wear the bearings quickly.
Also maybe you can just open up these generic bearings before you install them and pack them with your favorite grease.
PoorCyclist wrote:I wonder if there is something with your shell causing the bearings to not align right, which will wear the bearings quickly.
Good point there. The poor life of the bearings is non typical, and the fact you have the same problem regardless of bearing suggests the problem is else where.
btw vuma quad and lightening are in fact early BB386 cranks not BB30. These should be some of the longest lasting bearings you'll ever have having such large bearings spaced so wide.
The issues with mine happened after a 'wet' ride. the bearings developed some oxidation (sounds better than rust) on the outer and inner race.
I hated the way the bearings where pushed out with the park tool (hammer on the inner race, especially when sealed with loctite 609) so i made my own tool for pressing these bearings in and out. Now servicing the bearings is pretty straight forward. (it automatically centers the bearing perfectly) I'm not aware of any BB system that stays noise-free after 6000km of riding. For me, the BB30 is the best option out there. It's the most silent, so far...
you don't want to stress the bearings when installing the crank either. Heat up the bearings with a hair-dryer (not too hot, just to create a temperature difference) and use a can of compressed air upside down to cool down the spindle of the crank. This way the parts literally fall together.
Now with my situation the bearing alignment itself I don't think is the issue at all. I am not really using BB30 like most of you. I have a standard threaded BB shell, and the Vuma Quad cups thread into it, that use the BB30 bearings. As Phil P mentioned the bearings are actually spaced out wider than BB30. These are the cups I've been using.
They fit in there tight. I remove the cups from the frame, and I use a regular 3/4 ton press to press the bearing in, and they usually pop out pretty easy with a hammer, and the appropriate sized socket.
I don't see how the bearing alignment could be off. Now the spindle on the other hand. Fits pretty loose until you tighten the system up. It seems like the lip at the ends of the crank arms on the spindle is what centers it up. So there may be a possibility of some misalignment in there between the inner race, and the spindle. Maybe a bit of loctite in there would help things? I am thinking this may be the culprit.
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