The document lists various motorcycle models grouped by engine size categories. Models ranging from 125cc to 600cc include Aprilia RS 125, Derbi GPR 125, and Yamaha YZF250. Middleweight sport bikes from 600cc to 1200cc include Suzuki Bandit 600 and Kawasaki Ninja. Heavyweight models over 1200cc include Suzuki Hayabusa and Kawasaki Ninja ZX-10R.