alright dave, One of my mates bought it off of somebody because his ct9 was smoking like a good'un. for some reason it suddenly stopped smoking so there getting rid of it. now i thought , assuming its a ct9a , it would have 4 sets of twin fins... this has 6 sets of twins...and one of the fins is marked with a red pen, as you can see...very minimal play in the shaft, and all it needs is the exhaust housing being mated to it. im ripping my ct9b off my glanza today/tomorrow/when/if it stops raining... as im having it rebuilt and hybrid..allthough seeing this made me wonder about trying it.