Razor Products E2/E1 Series Powerrider Inner Tube W13112099045 Replacement Replacement 200x50 scooter inner tube with angled valve for the electric Razor e100, e200, ePunk & Dune Buggy. Size 200x50 means that the tube is 200mm x 50mm, and in inches is 8" x 2". 200 x 50 Innertube Fits: - Razor e100 & e125 Electric Scooter with front inflatable tire. - Razor e150 Electric Scooter (front and rear) - Razor e200 & e200S Electric Scooter front & rear tires. - Razor ePunk front & rear tires - Razor Dune Buggy front & rear tires. Size: 200 X 50