|12th November 2009||#1|
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Bob Jackson Vigorelli with Miche crank and BB
Building a Vigorelli and got the BB and Miche crankset with the frame - the specified the correct components and I just paid. I noticed that the rear of the crank spider is like 1mm from the chain stay, with some pressure I can flex the spider to touch the frame but understand that this isn't a normal stress that will happen from riding.
The end of the actual crank arms are 7mm or so which I think is fine, its just the rear of the crank spider that seems close. I guess if the BB was to be spaced out the chain line will get cocked.
Are these clearances normal and acceptable?
|12th November 2009||#5|
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Well I think its right. The frame is with BJ at the moment to have the scratches it arrived with sorted.
I briefly built it up and it was a bit close I thought - but then, I don't have much expirence in building bikes.
How do you space a Miche BB? Is using a 1mm spacer required on the hub then if the BB aren't actually 42mm, I guess if its actually 41mm say, I just space the BB to 42mm and have done? BTW I'm using Phil Wood hubs.
|12th November 2009||#15|
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As for the chainline differences, get the fixed side dialed in, the freewheel side will probably be okay (how far's it going to be out... 1mm? less?)
|12th November 2009||#18|
|12th November 2009||#19|
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So, given that the miche BB is adjustable you could try getting the chainline spot-on with the surly sprocket. Then the freewheel side may be a little bit out, but it probably doesn't matter all that much with a freewheel.
Hopefully that makes more sense!
|12th November 2009||#20|
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|11th January 2010||#25|
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Small diggage, soz. Thought it better then digging the whole transmission database thread.
I (will) have a BJ Vigorelli, Paul cranks, and (will) have Grand compe hubs.
After I UTFS I decided to go with a campag Centaur 111mm BB.
Just had a discussion in blb, and now I haz da confusion.
I was advised that I may as well get a Veloce because there isn't that much difference with sealed BB's and I'd really just want a light one (I think this is the jist).
She said they use the Miche BB's (which BJ provide I think if you ask for a BB) because you can adjust them,or a phil.
I can't afford a phil BB and I'd read here that the Miche's are cheese. Her point on this is they are if you put them in alloy frames but fine on Vigorellis.
On the transmission database here I think I'm right in saying that the majority of people running Paul cranks have the Centaurs.
Any advice peoples?
|11th January 2010||#27|
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Cheers Ed. I can get the Centaur fairly easily I would have thought. Surely it's got to be better than the Veloce else why would it be twice the price?
I like the idea that you can adjust the chainline, but if the Miche have some bad rep, and the Centaur have good rep, then I would have thought it a no brainer.
Perhaps the bikes shops just have the perspective of fitting them, not long term use.
|14th March 2010||#43|
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Hi all. Quite glad to have found this thread to add to as I don't yet have thread-starting privileges. I have a Bob Jackson Vigorelli, with Miche Primato Advanced crankset and 107 mm BB, System EX hubs which are supposed to be 42 mm, and an EAI sprocket. I've had the bike a few months but only noticed this yesterday - so I've no idea if this is a recent development. Distance between the pedal ends of the crank arms and the chainstays is, I also note, shows it is all slightly to the left.
I've no idea if that mark was due to contact but it certainly looks like it :( I'm pretty worried, but it does look as if it has only just gone through the paint.
What is the best solution? Chainline seems ok at the moment. Is this fixable by having the BB moved over to the right a mm or 2?
Is there a manual online on how to fit the Miche BB? Is there a Miche paste or thread compound for this? Am I looking at a f'in 'mare of BB woe here and would I be best to make some major changes to BB / crankset?
Your advice appreciated.
|15th March 2010||#45|
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Well, the BB has been moved over to the right a couple of mm and all looks well. I'll need to keep a close eye on it as I am pretty positive there has been movement of some kind somewhere along the way - in other words that clearance was not so tight when the bike was first built. So - movement of the crank on the taper, or movement of the whole BB?
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