Vintage Campag BB Compatibility

[rusty bodie]

Can anyone tell me if this BB should work with a pair of Nuovo Record cranks, please?

http://www.ebay.co.uk/itm/OMNI-Racer-WO ... XQLw1Ryg8K

:?

 

[legrandefromage]

Re:

Yes

Type: 1.8° ISO Taper

http://www.sheldonbrown.com/bbtaper.html

 

[Midlife]

Is that BB symmetrical? At 111 mm Could be a tight squeeze on the chain stay on the drive side chain rings especially if it's short wheelbase without much of a flute on the chain stay.

Shaun

 

[jackosbournesnr]

I think 111 will be too short.

 

[PerB]

Re:

I would say no, the Nuovo Record used either 113 or 115 mm axles, the 111 mm is for Record C, Chorus etc in other words the next generation.

 

[stringfellow1946]

No, to short

 

[rusty bodie]

Re:

Are you sure that Super Record is 113mm?

http://velobase.com/ViewComponent.aspx? ... b&Enum=119

Would one mm really make a difference? As I recall from my teenage years, there tended to be around a 5mm gap at least between the inner chainring and the chainstay when the cranks were bolted on.

:?

 

[stringfellow1946]

From the 1985 spares catalogue

 

[964Cup]

Re:

[Nuovo] Record Strada (1049/A) cranks need an asymmetric BB. Exactly which BB depends on when the crank was manufactured (pre- or post-CPSC).



A = middle section
B = NDS
C = DS

Total length pre-CPSC = 110mm (English)
Total length post-CPSC = 112.5 (English)

Note that AIUI pre-94 Campagnolo chainsets used something more like a JIS taper than ISO. Post-94 they moved to ISO. So if you're using a non-Campagnolo BB with an ISO taper for a 1049/A crankset you may need to go up a couple of mil on each side to get the right chainline and Q-factor. Can't confirm this as I haven't tried.

 

[jackosbournesnr]

Lifted from the description of the current Campag Centaur square taper BB:

The Campagnolo Centaur Square Taper Bottom Bracket will not fit older Campagnolo Nuovo or Super Record road cranks which require a 115mm spindle with a 5mm drive side offset. All newer Campagnolo bottom brackets are symmetrical and lack and drive side offset.