6061 or 7005?

[2Loose]

I keep seeing references to differences of frame material and wonder the difference?
obviously they are good for different things?

 

[Gerry Attrick]

I think this may answer your question: http://matukas.pri.ee/KB/alumiinium/AL6061vs7005frames.pdf

 

[accountantpete]

They are both Aluminium alloys - the 6061 is supposedly a bit heavier but quite honestly I don't think I would be able to spot the difference between the two - the stiffness of the frame derives more from the design and build quality so this is what you should look for.