a single shock is a better design, of course depending on the shock. my 13 hammer which the speedmaster "might" replace because i want a lighter cruiser with decent power. that said the hammers single shock + inverted cartridge setup with only a single disc, with bigger 4 piston caliper is the best stock bike i ever owned in spite of its weight + size handling is great + 106 cu in got plenty of power. a 1200cc hi torque engine should be plenty with less weight + should put off less heat than the 106!!
