From where to obtain Hagon Nitros ?

What Scott is saying is that the the extra length will drop the swing arm down enough to hit the crossover on a two pipe system

English Bob,
How does the swing arm "drop" when it is connected to the rear wheel, which is always on the pavement???
 
NOTE: Dave Quinn has gone out of business for health issues, after 35 years. As of: 1 July 2018.