Thanks, I kinda figured they were, I was looking at the Shinkos but I just wasn't totally sold on them just yet. I've got the wing size Metzlers now I think are made of some sort of iron, I put them on right before went to the national in Frisco in 2008, the bike had 52,000 mile on it, I've got 72,000 now. Time for a change though, theres plenty of tread left too!