Finally was able to get hold of one of these sought after mechs at long last, at a not too silly price either. This is the all steel Eco version of about 1981, as opposed to the original 1975 titanium offering, its about 70g heavier, so what! Fitted it to my 10-speed Corsa with a 34 sprocket on the back, loaded up this machine will be a bit easier to move over some of the hills of Plymouth and Devon.