Just weighed my 2007 WR250F with about half a tank of fuel, first time I've ever weighed any of my bikes, it came in at 275 lbs. or 124.74 kg. Bike still has the stock exhaust, rear D803 trials tire, stock size battery, and bark busters. The trials tire might be adding a few pounds and the bark busters probably add a pound but good grief this is a heavy bike lol. I'm going to take some of the regularly replaced (exhaust, wheels, battery, e start..) components and get individual weights to see where I can knock off a few pounds. I'll add my findings and any mods I do here.