I just wanted to inform you that I put this much on my stock chain and sprockets. I just changed the front sprocket at 6000km, but because of the worn chain it it dead now. Front sprocket is with broken teeth now it happened yesterday on the trail, and the chain is without 3 rolls. It happened after I gas it hard. I just wanted to see the limit of all this. BTW the chain specification Yamaha gives 150.1mm on 10 links is pretty accurate! I passed this specification 500km back... I oil my chain every evening after ride and wash. I have washed my chain 2 times in the period with gasoline. I put this millage from the end of Feb until yesterday.