weave

hello everyone, new owner here, love the bike but seem to have a slight rocking motion at low speed. it happens around 30 mph, any one else get this or have a clue what causes it. cheers

Picked the bike up today, its a 2001 RSvR with 19k on the clocks. Looks mint. Within 20 feet of leaving the dealers i noticed a slight weave leaft and right, very subtle, and initially i thought it was my imagination (new bike, maybe top heavy) but it soon became almost impossible to hold a...