Buying 2006 Ninja 636 for $3500 (37k mileage) It runs great. I've been riding a 250 and been getting into tricks, I figure this is a good 2 year bike? : r/Kawasaki
2006 KAWASAKI ZX6R NINJA 636 For Sale | Motorcycle Classifieds | Motorcycle.com
2006 Kawasaki ZX6R
2006 636 Engine blown - replacement motor options?! | Kawasaki Ninja ZX-6R Forum