Campagnolo bottom bracket

[woodbutcher]

What am l doing wrong...l bought a Campagnolo bottom bracket as per the photo Italian thread 115mm spindle, for my Centaur triple crank.
To fit my Italian Veneto frame, except that it doesn't ! I can't get it to even begin to screw in. Is it possible that the frame thread is English and should that make a difference anyway ?
I don't mind hanging onto the campag. bb, it may have a future use but what should l do about finding the correct one for the frame.

 

[chriscross1966]

From memory, whilst the thread sizes and pitches are pretty similar, on an English BB one of the cups is wrong-handed thread, on an Italian they're both the same...

 

[biggs682]

From memory, whilst the thread sizes and pitches are pretty similar, on an English BB one of the cups is wrong-handed thread, on an Italian they're both the same...

correct Italian threaded both screw the same way , is there a thread type on the box ?

 

[woodbutcher]

correct Italian threaded both screw the same way , is there a thread type on the box ?

will go and have a look...its on my workbench in disgrace !

 

[Cycleops]

Don’t they go in backwards like their tanks did in the desert? I’ll get my coat.

 

[woodbutcher]

Been and had another look...l assume that centaur B. Bracket 115.5mm -ITA is the thread type. and sure enough they both go the same way .
So l thought why not check the obvious...measured inside of bb shell 34mm, measured outside of bracket thread 35.5mm . Q.E.D up the creek without a paddle.

 

[woodbutcher]

Don’t they go in backwards like their tanks did in the desert? I’ll get my coat.

Yeah but very stylishly

 

[raleighnut]

Been and had another look...l assume that centaur B. Bracket 115.5mm -ITA is the thread type. and sure enough they both go the same way .
So l thought why not check the obvious...measured inside of bb shell 34mm, measured outside of bracket thread 35.5mm . Q.E.D up the creek without a paddle.

Is it a French BB size. (seeing as how you're in France.)

 

[woodbutcher]

Is it a French BB size. (seeing as how you're in France.)

I really hope not since it is an Italian made frame which l bought from Hungary and paid for in pounds....this EU thing will never catch on you know

 

[themosquitoking]

Yeah but very stylishly

And making a horrendous noise.

 

[midlife]

I find good old Sheldon Brown a good source of information about sizes...

https://www.sheldonbrown.com/cribsheet-bottombrackets.html

 

[ColinJ]

I have owned 2 Italian bikes. My Bianchi had English BB threads; my Basso has Italian BB threads.

 

[woodbutcher]

I find good old Sheldon Brown a good source of information about sizes...

https://www.sheldonbrown.com/cribsheet-bottombrackets.html

Thanks for that, good to see a simple explanation with sizes. I hope lve done the right thing now and ordered an English thread bb , at least the odds look favourable. If this is wrong as well l may end up with an impressive collection of bb's to look at 1

 

[woodbutcher]

And making a horrendous noise.

That was the sound of Tosca and Aida practicing for The marriage of Figaro