What year did the aluminum subframe start?

I ask this question because I just checked out a '03 WR 450 at a local shop that had been modified, and had a decent price.

From memory I thought the '06 WR's were the start of aluminum subframes, but I wasn't sure...

Anyone?...Buelher.....Buelher....

I remember it being the 2006 also starting with the aluminum...

07 for WR, 06 for YZ

He's referring to the sub frames... they started with the Aluminum sub frames on the WR in 2003:ride:

Thanks Don. My memory was clouded on that one.

The Alu sub started in 2001 on the wr426. I had a 2000 wr400 and it was the last year of steel.

The Alu sub started in 2001 on the wr426. I had a 2000 wr400 and it was the last year of steel.

2002 last year of the WR 426 has a Steel Sub Frame

2002 last year of the WR 426 has a Steel Sub Frame

Damn your right. Only the YZ had the alu sub. I bought a yz sub for mine and thought it came from a WR.

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