What makes you say that? I'm looking to go smaller/lighter. The 525, so I hear, can be a bear in the tight trails. I'm looking for a bike that can do the tight nasty trails, singletrack, and still shine in the open stuff. The WR, so I've heard is a bit on the pudgy side. When you're doing 60 miles of singletrack all day, weight is a big concern. I have not found that to be true. The 525 is great in the tight stuff. Like I said it is my woods bike of choice although I have really been having a lot of fun on my 05 KDX220 in the tight stuff. But if your not concerned about a plate the 06 WR450 would really be an interesting choice. From what I have read about it I would love to ride one. Still the 510 husky is light, turns great, has an e-button and is a stronger running bike than the 525.