This is a brand new FA-170R3 Cylinder. On my motor I stripped a plug thread and purchased this to fix this problem but the guy who I chose to fix it managed to clean the thread out as it was not damaged deeper into cylinder head, thus I now have it for sale at a very reasonable $120.00. It is as pure as the day it was born a chance like this doesn't come up very often. The bore is as pure as a baby's bum. Totally as new although I did take it out of its original bag, Also a packet containing Saito Valve retaining collets to suit.