Also, the chassis has received a few evolutionary touches. The wheelbase now spans 52.9 inches, three-quarters of an inch longer than the previous version, and the front wheel has been reduced from 16 to 15 inches and is shod with a narrower 80/90-15 tire replacing the previous 90/80-16, the taller shoulder aimed at improving comfort on bumpy streets. Equally, the rear tire is narrower: a 100/80-14 in place of the original 110/80-14. Piaggio says slightly narrower tires further reduce fuel consumption and enhance agility. The braking system is based on a single 240mm front disc and a 140mm rear drum.