Hi I have a Colnago Super with Mavic G40 clinchers at 27" I would like to get a date of production but where can I go to get that info? When were they produced? I think it could be early 80's but am not sure. I bought it recently from an American guy in London. It has a Mavic SSC gruppo and pedals. Plain red with large flaking decals. It would benefit from arespray and new decals. Would it be better to keep the 27" wheels or replace them or sell the whole bike and look for another? The 27" wheels confused me when I dicovered their size. Any help very much appreciated. I don't know if this makes a difference but the frame has no chrome parts and is not stamped with the club logo. It has 39 stamped underneath. Thanks. England.