Peugeot BB shell width

So I've measured up my BB and ready to order another one, I was just about to order when looked on the wiggle site and saw that they recommend 73mm shell width for Mountain bikes. I was pretty sure that I measured up my BB as 73mm, I know that it's english threaded but perhaps I was measuring it wrong, over the ends of the shell cups? As wiggle says 68mm usually fit road bikes.

Could anyone please advise what shell width they use on their pugs?

My mid(?)-80s pug is a road frame ("Carbolite"; nothing particularly special). BB is English threaded. I fitted a 68mm BB cartridge. The 103mm Tange one from Velosolo in fact:
http://www.velosolo.co.uk/shopchain.html
(5 or 6 items up from the bottom)

The measurement is of the shell itself, not including the cups. Only some older MTBs used 73mm; most new ones are 68mm.

http://www.londonfgss.com/thread11067.html

My mid(?)-80s pug is a road frame ("Carbolite"; nothing particularly special). BB is English threaded. I fitted a 68mm BB cartridge. The 103mm Tange one from Velosolo in fact:
http://www.velosolo.co.uk/shopchain.html
(5 or 6 items up from the bottom)

Cheers mate ordered that one, now got a couple of bottom brackets to try out.