| Have you got some large scales handy
currently out of the bikes and available for weighing I have a 955 engine along with engines from a 600 Monster and a 748 and if my mate gets his finger out possibly would be able to weigh a 900SS engine as well
From lifting them at various times I would say they are all quite heavy, heavier than my ZXR400 engine and my R6 engine and my Fireblade engine even my TL1000 engine feel lighter than the 600 engine | 
skidlids
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