Frame weight difference between steel and aluminum

[JohnN]

Scott hit a jump, a pretty high one at that and when he landed, the bike broke in half. He was very lucky not to have gotten hurt!!

He is a video from the ride day....

http://video.mpora.com/p/fLVzVVGqV

[Hondacrrider]

I think that bike is from this video!
500 2 Stroke day at Apex 10/04/09

[JETZcorp]

Yeah, I recognized it, too.  Also notice that video contains the #2 Maico, which I seem to be noticing all over the place these days.

[JohnN]

In the video if you look closely you'll actually see two Maico's, #2 which is Keith Ree on a 500 MX and #74 Neil Berry on a 320 MX.

I really enjoyed that video.....

Braapppp!

[ford832]

Here's another that is more typical.

http://www.thumpertalk.com/forum/showthread.php?t=576795&highlight=aluminum+weight

[2smoker]

WHat up with the guy on the suzuki?

[JohnN]

The guy with the Suzuki did something a little different....



He stuck a Honda CR500 motor in his Suzuki Frame....

There's a bunch more photos from that practice day here;

http://twostrokemotocross.com/2009/04/500cc-two-stroke-day-at-apex-motocross/

[meger z]

i was on a ktm 500 that day did 5 laps then a wire came off the coil ,So i went back to pits put the wire back on (had to take the tank off) went to kick her ,she kicked me back and broke the kick start shaft game over,had a good day though.

[maicoman009]

I read somewhere that one of the main reasons why the Japanese manufacturers started using aluminum frames is because of a shortage of quality steel in the Asian countries? Whether this is true or not I'm not 100% sure however I did read that either somewhere on the net or in a motrcycle mag.As soon as I recall where I read that info I'll put it on this site asap.

[JETZcorp]

You probably read that in one of MadScientist's articles right here on TSM.  That's where I read it.