Vintage Dirt Bike Q & A

Hi, have this DG head, think it´s for the early cr125M but i´m not sure, can anyone confirm it is ?? If so, what years it would fit?
58mm bolt pattern, 56mm bore. Thanks...

( click on picture for bigger image ! )

I know it says DG but that looks more like an FMF Radial/Porcupine head to me.
Sorry don't know what bike it fits, you can checkout a test on CR125M heads here
http://www.vintagefactory.com/New%20Index.htm

Thanks, it indeed looks like it but there is some difference.
Great link, very nice stuf on there


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I was researching heads a while back for my in-process dg racer rebuild. Yours in a super early, super scarce DG head. Those were stupidly expensive to build requiring multiple casts for the miriad of angles involved. They made very few before moving to the more plain cast model, then ultimately to the efficient to make extruded heads that we see so many of. Facts get fuzzy anymore after too long, so I can't swear that all those details are precisely correct, but mostly they are. It isn't quite a normal choice for a DG racer, nor would it be proper for somebody building an FMF bike. It is pretty cool though, and for a small number of guys it would be just the thing they were looking for. Small number of buyers and even smaller number of those heads means it will probably fetch quite a price if you are patient. It looks like it should bolt right up to an 74 through the next few years of bikes, really period correct for the 74/75.