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Old 06-29-07, 03:33 PM   #1
mountaindew
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specialized m4.... what is it?!

Whats up everybody. Wow, its been a while since I've been here. Alright I need your help, my buddy bought a Specialized M4 and uhhh.... what the hell is an M4?! I can't find a review for it. I've seen reviews for Specialized M4 hardtails, but its not a hardtail its a dually with air. On the pivot points it says "S-Works" on it but thats the only kind of identification I saw. I was just curious if you guys could tell me a little about it. Thanks.
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Old 06-29-07, 03:39 PM   #2
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I believe that M4, M5, etc refers to the way in which the frame material was manipulated during the manufacturing process.
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Old 06-29-07, 03:52 PM   #3
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Quote from some 2003 Specialized promotion literature:

"M4 Manipulated Alloy frames. M4 is a unique aluminum alloy with great characteristics for making a bike:

Strong - 24% more than 6061 aluminum (ultimate tensile strength)

Light - excellent elongation (formability) characteristics allow tubes to be formed with thicker sections in higher stressed areas and thinner walls where stresses are less

Durable - exceptional fatigue strength means M4 will hold up to years of hard riding"

I found out elsewhere that it was a Columbus tubing product custom-made for specialized based on their Starship Series tubing. In a quote from totalbike.com, they had this to say about it:
"It contains silicon and magnesium as main components apart from aluminum, and there are also little percentages of Cu, Mn and Zn. All this means a 6000 series alloy that is very resistant to high temperatures the way few millimeters far from the welds the tube reaches its highest mechanical alloys."

The full article is here:
http://www.totalbike.com/web/article...ing_test1.html

Hope this helps.
D. "More-than-you-wanted-to-know" Minor
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Old 06-29-07, 04:17 PM   #4
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Mine is "A1 Enhanced Aluminum," whatever that means.

If it says S-works it was a top of the line frame in its time so that's cool.
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Old 06-29-07, 04:26 PM   #5
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Mine is "A1 Enhanced Aluminum," whatever that means.

If it says S-works it was a top of the line frame in its time so that's cool.
...and Gastro knows cool!
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Old 06-29-07, 04:43 PM   #6
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...and Gastro knows cool!
That's right. I do know some cool people. you are by far the coolest.

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Old 06-29-07, 04:47 PM   #7
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Nooooooooooooo, not the manure pic again!!!!!!!! I'm gone for a while and this is how I get treated?
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Old 06-29-07, 04:52 PM   #8
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Nooooooooooooo, not the manure pic again!!!!!!!! I'm gone for a while and this is how I get treated?
You've been gone? I hadn't noticed.
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Old 06-29-07, 04:52 PM   #9
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Cold, man, cold.
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Old 06-29-07, 04:54 PM   #10
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You've been gone? I hadn't noticed.
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Old 06-29-07, 05:02 PM   #11
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Settle this on the 14th? I want to ride Black from the very top.
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Old 06-29-07, 05:05 PM   #12
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Settle this on the 14th? I want to ride Black from the very top.
You want me to grab a camp site?
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Old 06-29-07, 05:21 PM   #13
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You want me to grab a camp site?
yes please.
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