> The Virago has a single pin crank and the rods are side by side. The reason > is is smoother than the HD is the angle between the cylinders is greater, > seperating the power pulses farther apart. I'll be darned. I stand corrected. Thanks, Bob! I imagine the stressed member part helps too. -K ========================================================================= Mr. Kelly Cash / Chief Technologist MITS Unix Phone: 408-576-3663 Cadence Design Systems FAX: 408-894-3400 2655 Seely Ave, Bldg 6, MS 6B1 Pager: 888-853-8860 San Jose, CA 95134 email: [EMAIL PROTECTED] =========================================================================