os 12tz specII vs. os 12tz specII AL

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02-09-2009 | 07:10 AM

87stanggt

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os 12tz specII vs. os 12tz specII AL

Can anyone tell me the difference between these 2 motors? Searched past threads and came up with nothing. Specs look the same for both motors, what am I missing. I know these have been replaced b the new 12zx, but they can be found pretty cheap, I don't really care about the latest motor on the market! What pipe are you guys using with this motor?

02-09-2009 | 07:52 AM

musti72

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the AL one is with aliminium head. the other one is with magnesium.

02-09-2009 | 08:09 AM

lil-bump

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The magnezium head is lighter which will lower the center of gravity. But magnezium does NOT tranfer heat as well as alluminum. I would go with the Alluminum version.

Last edited by lil-bump; 02-09-2009 at 08:48 AM.

02-09-2009 | 08:37 AM

musti72

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Quote:

Originally Posted by lil-bump

The magnezium head is lighter which will lower the center of gravity. But magnezium DOESNT tranfer heat as well as alluminum. I would go with the Alluminum version.

I guess you wanted to say as above