As it seems to be flavour of the month, being a sad git I thought I'd weigh some swingarms:
Steel 620 Monster - 5.68kg
Alloy M1000/M620 - 4.38kg
Steel 600ss - 4.94kg
Alloy 750/900ss - 3.65kg
Alloy early 750ss Verlicchi/DP - 3.4kg
Steel M600 - ??? (don't have one)
Alloy 851/M600 - 4.46kg
No prizes for guessing which one I have on my bike and which ones I'll be selling!

Paul
15th year in DD #68 and getting slower by the year
1199, SS800 & 620SSie DD racer