I am 5'11 about 185 and have been riding for about 5 years. I am just coming back to riding after taking 2 years off. I about to get a new bike and am wondering if the WR450f would be too much power or is it bearable to eaze into it? I've been on YZ250's and can handle myself just fine but am afraid that the WR250f will end up not being enough in the long haul. Any suggestions to help with this?