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hello, i need some help lads i was riding home from work and i was on this long road and i decided to give it some any way it was hitting about 10-12,000 revs in 3rd gear than some funny sound came and the bike lost power.
it sounded like a differnt bike like a v-twin or somthink. I thijnk that one of the pistons in the cylinders is fecked can anyone shed some light on what the problem could be.

many thanks. josh

Sounds like a piston ring to me. Was there any smoke coming out of the exhaust at all? And the sound was it like a loud tapping sound? If so then i would definately say a broken piston ring.

Dropped valve ?
Broken cam chain ?
Holed piston ?
Small end problem ?
Big end problem ?
Throwen rod ?
Broken rod ?
Broken camchain tensioner ?
Broken camchain guide ?

Any of the above in any combination or maybe even something else I can't think of off the top of my head

Take the airbox and exhaust off and shine a torch up in there you should see the valves............if they are still there.
There might even be a few bits of valve in the airbox/exhaust.
If it has broken something you looking at a compete rebuild or a new engine

could even be coils/leads or plugs breaking down??