Campagnolo bottom bracket - Super record crank

[Redzrx]

I have started the task of restoring a Dawes frame from the late 70's or early 80's. As with most things in life there has been mission creep and this is becoming an expensive hobby!
I have bought a 1985 (dated from rear of drive side crank) super record chain set. I am struggling to find the correct bottom bracket axle length. It is an English b.b shell.
Any advice would be welcomed. I think 111mm is right but the wonder of the Internet means there are so many opinions out there.

 

[Midlife]

112 would be my starting point

Standard thick and rifled BB cups as well if memory serves,. I am assuming you are not getting the titanium Super Record BB set?

Shaun

 

[gavr]

Re:

Check carefully that there's no hairline cracks in the aluminium around the mounting holes for both the pedals and the BB. They can suddenly and catastrophically fail from metal fatigue...

 

[Redzrx]

Re:

There is a titanium one for sale on eBay but £250 seems a little high and weight is not an issue as saving grams seems pointless when I need to lose 20 kilos.

Just an ordinary record or nuovo record.

 

[cromoman]

Re:

It's a bit of a minefield!

The post 1978 record/super record cranks have an asymmetrical axle. I've just measured mine at 114mm. The tapers are non-standard too (not ISO or JIS apparently), so using an after market bottom bracket (I'm told) isn't straightforward.

The axle will be marked "68-SS", or "68-SS-120 (+1.0 +1.5)"

If you find an axle marked 66-SS, make sure it's the correct length as the later C-Record axle is shorter and has a similar marking. I think these say 68-SSA or 68-SSB on them.

The cups as previously stated will be the thick walled rifled ones.

The good news is that if you find one in good condition and fit it properly to a properly prepared frame, it will be very smooth and very durable.

 

[Midlife]

Just curious, is the axle you have measured at 114 mm black in colour?

Shaun

 

[cromoman]

Re:

No, it's sort of silvery grey in colour.

 

[Midlife]

Thanks, just curious as GS plus later Triomphe were black and came in longer lengths .

Shaun

 

[Excel]

useful guide for Campag.bottom brackets incl. Super Record.......
<< http://www.minortriad.com/campagbb.html >>


Griff

 

[Nob]

Re:

That's very good guide
If want to go modern then a record cartridge BB with 111mm axle would do your needs or if you want cheaper then Tifosi.