Originally Posted by oalvarez
The new engine has slightly better fueling, and the better turn in (Stone) is due to the lighter wheels (the rest of the bike is the same in comparison terms in regards to weight). The tubed wheels of the Classic/Racer are heavy in comparison and most definitely affect the poorish handling characteristics of the bike.
Lookers they are.
Racer and Special have aluminum rims and the same published curb weight as the Stone. If tubed tires are heavier, everything else being equal, the spoked aluminum wheels themselves must actually be lighter than the cast....(!)
Classic does indeed have heavier steel rims and higher curb weight.