Sportsters can give problems because they are only about 60 pounds heavier than a Speedy or BA, at least in stock form.
If they have a lot of billet chrome bling on them, they are heavier yet. An HD Big Twin is 700 pounds of lifestyle, slows 'em down.
Honda 1300's are close to 700 too, don't know about the new Yamaha 1300.
Just like back-in-the-day, Triumphs get their performance and agility from power-to-weight ratio, not mondo horsepower.
