Used Bicycle Frames

I understand that xtrolite G7 is a metallic material used to manufacture bicycle frames, and that is claimed to be "lighter and stronger than traditional aluminum. I want to know what it actually contains (as an aluminum alloy) and its physical properties. So if anyone has / had such a framework, the strength and light is it? Is it good?

It is 7000 series aluminum which whiskers of aluminum oxide mixed with it. Although the current composition is the property that is the general idea. I suspect there is a higher volume of magnesium in the mix too. Kinesis made the things they call "kinesium"), and is probably the frames as well.

It is lighter, not because the material itself weighs less, but because it is stronger. You can compare this to the tensile chrome molybdenum from Hi.

With the above information in mind, the material itself is not any lighter, but because it is stronger than materials can be used while maintaining strength. less material = less weight. The problem is that aluminum requires a number of wall thickness to prevent buckling, and aluminum ALL has a limited since a certain force that can not be applied "so time "before it crashes. Steel does not have this problem and titanium is not far behind steel. I think these things have the same issues as the specialized M4.

The only real way to determine the strength of a particular frame (each image is a different resistance based on manufacturing and other variables) is, thus, to break.

Hope this helps!

You do not have one, but the first link suggests that it is aluminum 7005 (2nd link), but I saw another reference to xtrolite G7 is an alloy of scandium. Scandium in small quantities in an aluminum alloy apparently has a number of advantages over "normal" 7005 (See the third link to an article by Easton SC7000).

At one point a number of years back "Scandium" frames are becoming the next big thing ... but they kind of got lost somewhere. See the discussion at the last connection. One suggestion is that life could have built a problem. I do not know, but suspect, like many things, alloy SC had some advantages but also disadvantages, and overall just was not an advantage sufficient to produce a meaningful differentiation. After all, it is still essentially an aluminum frame.

Personally, I prefer titanium or carbon.