[its a drag bike has never seen a jump... and front sprocket is an 18 to big for a case savor... but i was thinking the chain was too tight.. it happened after a launch.. i launched in a lil bit of sand then spin spin spin.. grip and i heard the crack.. so i was guessing the chain was too tight..
That is a nice looking bike! If you launched in some sand and then hooked really hard it would not have made a differance how tight your cahin was i dont think. If you hooked that hard then i am sure thats what did it but it does look like the case was already week from a chain break.