thicker sprocket nut worth a check

[fazersharp]

[quote author=fazersharp link=topic=21736.msg251178#msg251178 date=1485788251]
On the other hand when we are talking about 80/90Nm how much of a difference would 10Nm make - 10Nm on its own is almost hand tight.
By now if you are on OEM and have not had a loose nut or it fall off then I would say that your shaft is to spec, so technically perhaps you do not even need the thicker nut ?
So no deed for the thicker nut and if you did put one on then no need for 90Nm.
If the thicker nut along with 90Nm has came about from extensive testing (on an under sized shaft ) then is there still a worry needed about going all the way to 90Nm on an undersized shaft.

For the record I am convinced that my shaft is the correct size as are all 98 reg bikes BUT when I change sprockets I will be putting on the fatter nut with thread lock 620 and to 80Nm

Now then a while back there was a discussion about lube and the effect on torque settings - so wont threadlock be the same as adding lube to the thread.?

No, it works in a different way.
If you remember, the correct way of "lubing" AND getting a true torque reading was by using engine oil.
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Just remind me the way it works then, are you saying that torquing up dry will lead to under torquing as it bites too early and all torque settings are based on engine oil as lube 

It seems that yam have got away with it because I dont know of any reports of shafts being replaced when the thread gets foced by the fault because by the time it happens to someone the bike is years out of warranty. So instead of a big recall they have got away with it by throwing a 10p nut at the problem.