Back when I was young and stupid one of my motorcycles was an RD Yamaha . Was cruising along one day and came to an open stretch of road and opened her up . I was laying down on the tank and she was just singing along with that exhaust melody only a 2 stroke can sing . And then in an instant I heard this awful noise and the rear of the bike was wobbling and skidding .
The chain had snapped and somehow became intangled in the spokes/swingarm/hub and it was instant stop ! I never measured how far I skidded but it corded the tire down to a HUGE flat spot . It was NOT my skill that kept the bike upright just dumb luck and it wasn't my time . I had a lot of time to think about what happened and what COULD have happened as I sat by the side of the road waiting for my dad to come pick me up .
Ended up replacing the tire , chain and rear wheel/hub assy and kept riding her for a few years.......... was still young and stupid