Miche Primato Bottom Bracket sucks

My Mickey BB had to be beaten like a chav on a Friday night to get it undone.

The bearing is, however, a sack of spanners. 600 miles on a modern sealed BB is frankly pathetic.

I'm led to believe they're out of the same Kinex pot as the CampagNOlo, so I'm not keen on trying them either.

I've been running a Miche BB for more than double that and it's still fine. shrugs

johan, get a phil, you can...

Hmmm, my Miche BB has just started to unscrew itself, as did its predecessor, only about a month ago. One was fitted by me, one by someone else, so I can't blame the mechanic. The one on my Surly (RIP) was fine for over a year.

Is there any chance it could be something to do with the frame?

Perhaps the threads are just cut a little 'loose'. That'd depend on the tool used by your frame manufacturer and it's condition, and I guess the material qualities of the BB shell.

C'est la vie.

italian or engrish thread?

italian or engrish thread?

Not a clue. English, I assume, since I didn't notice anything unfamiliar when I was fitting it.

It's making me even less fond of this bloody bike.

is this the condor?

Yes. I know I should be counting my blessings, but so many things have gone wrong that it's just getting on my nerves at the moment.

Did you use a locking compound or grease or air on the threads?

try ptfe tape (30p or so from a plumbers merchant). about 5-10 turns on the threads, in the opposite direction to the threading. So, if you're looking at the bb shell frm the side of the bike and gonna turn the bb cup clockwise to tighten it, put ptfe tape on it anticlockwise. you still need to grease the bb.

(see tag that says installation error (not mine))

buy a bb with a flanged cup and then it will not come undone.
i had the same problem with my condor but the problem is the bb not the bb shell.

Wow! I'm constantly amazed that, when I post idly and grumpily on this forum about something going wrong, someone comes up with a solution within about 60 seconds. Thanks chaps.

buy a bb with a flanged cup and then it will not come undone.
i had the same problem with my condor but the problem is the bb not the bb shell.

For Italian thread is that?
Going to pull the miche out of my new build which has italian threads....

Is an Italian thread Campag Centaur flanged/suitable

Hey
The Primato bb needs a good mechanic to install. You could have cleaned the alloy threaded cups when you got it, then put a few drips of Threadlock no.242 on both sides of those 2 cups, let dry overnight, then clean your frame shell of any old grease and dirt, then simply grease the cup threads that have dried for 24 hrs, then install with the campy cassette tool, adapted to a torque wrench, and tighten both sides after selecting chainline, to 50 Nm both right and left.

           Keep in mind its sealed fairly well, but not for riding in rain, its a TRACK bottom bracket.
                   See, that BB isnt junk after all.
            Now as far as getting replacement parts from MICHE? well thats another story.
        They dont seem too worried about supplying the distributors with things like bb cups, hub axles, "cones", etc.
                   Maybe you can call them? At least your in Europe
                                                      Jack of CT USA

Haj
I have said this before, and Ill say it again, ITALIAN BB SHELLS ARE FINE, its the MECHANIC that causes the failure of the bb unit coming out. You need to tighten the bb in with GREASED threads, and torque down to 70 Newton Meters, with a torque wrench.

  And there will be no loosening.Put some responsibility on yourself, not the component giant Shimano. This could have happened with a Campagnolo BB!
                 Pardon me, but I once got stressed out by a dork who kept pestering me about "will by bb come out?"  I could'nt provide enough confidence with my work that day at the bike shop. Please confide in me though, when I say, Proper INSTALLATION and TORQUE spec ensures that an ITALIAN bb will STAY in PLACE

For all Miche Primato BB riders,
If , after you follow my lead, and your still paranoid about the BB cups loosening, clean shell faces and the exposed cup with an alcohol wipe, then mark indicating lines on the cup to bb shell face, and see if the cups move.If your frame shell is fine with bore dimensions, and you followed my instructions, IT WILL STAY IN PLACE.

         Fine tuning the chainline on this BB is up to you, and your eyesight however, so do that carefully before torqueing down to 50 Nm's.Good Luck.And dont ride this bb in rain and expect it to stay mint, its not a road bb.

"dont ride this bb in rain"

that's a bit tricky in LaahnDaan Engerland.

I let Pearson's install mine, if it comes loose then by your calculations Pearson's are shit.

still using the same bb, no problems as yet

Me too. I've had mine 9 months I think, no problems.

No bother with mine so far, been about 9 months too. Just used grease and torque wrench.

Hey
The Primato bb needs a good mechanic to install.

I wonder what that says about mine and Dammit's mechanical prowess :S

installing it in pissing rain, outside a pub probably didn't help either