This Osprey Yamaha Dirt Bikes Bookis the hardback edition and covers the model history of the 50, 80, 90, 100, 125, 175, 250, 350, 360, 400, 425, 465, 490, 500, 550 & 600 Two-Stroke, Four-Stroke, Enduro, Dual Purpose & Motocross models produced between 1956 & 1984.
