2007 Aprilia SXV 550 User Ratings

As part of standard SM fare, the wheels have been changed to 17-inch rims to better suit the asphalt. Michelin knobbies have been ditched for a set of Dunlop Sportmax D208 meats, a 120/70-17 front and 180/55-17 rear. The motors are the same except for the ignition mapping which allows the revs to reach 12,500 rpm from the 450 and 12K from the 5.5, and an increased compression ratio of 13:1 (450) and 12.5:1 (550). Transmission gearing has been lengthened to increase top speed in addition to a rear sprocket smaller by two teeth.