I recently purchased a 1995 GL1500 SE and the stock suspension on it is far too soft for my liking. The guy I bought it from put a car tire on the rear, and put it on BACKWARDS so the tread runs the wrong way. On the highway it feels like you are driving on black ice as the rear end wanders around. I purchased a Dunlop elite 4 to replace, and I figured I would swap out the shocks while I was at it. I ordered the progressive 412's without heavy duty springs and I'm thinking I may have to return them. I'm about 250-260lbs but do plan on losing weight sometime in the future. Should I exchange them for ones with heavy duty springs or get a better series all together?