The ALFA Topcase motorcycle cover is specially designed for larger motorcycles with a top case. This protective cover has the same specifications as the regular ALFA motorcycle cover, with the added feature of extra space at the rear for the top case. This allows the top case to remain on the motorcycle when the protective cover is used. The ALFA Topcase protective cover is available in sizes L, XL, and XXL. Apart from the provision for the top case, the other dimensions are the same as the regular ALFA motorcycle cover. License plate window When you park your motorcycle/scooter in public spaces, you must ensure that the license plate is visible. You risk a fine if it is not. The ALFA motorcycle cover is also available with a license plate window for this specific purpose. For the brands listed below, we provide model-specific size advice. If your motorcycle is not listed, you can follow the measuring instructions to determine the correct size. Aprilia | BMW | Ducati | Harley Davidson | Honda | KTM | Kawasaki | Suzuki | Triumph | Yamaha Measuring instructions Determine the size of the motorcycle cover by measuring the length, width, and height of your motorcycle and comparing them with the dimensions in the table below. The correct size will have a cover length that is approximately 5-10 cm greater than the motorcycle's length. For good ventilation, we recommend that the cover always comes up to about 10-20 cm above the ground. This allows air to enter the cover from the bottom and escape through the ventilation openings at the top. If you are in doubt between two sizes, choose the larger of the two. Because the hem is elasticated, the cover will always fit snugly. Length | Width | Front height | Rear height Size L 229 cm 99 cm 135 cm 125 cm Size XL 246 cm 104 cm 137 cm 127 cm Size XXL 264 cm 105 cm 140 cm 130 cm