High quality VESPA small frame motor clutch holding nut.
If you have ever ridden tuned 50cc VESPAS you may be familiar with this dilemma: Select the wrong gear, at speed, you can say goodbye to your clutch side woodruff key... This nut offers a larger contact area and can withstand being set to torque strength of up to 100Nm. - Most original PIAGGIO items fail at torque levels of between 50-60Nm – The increased pressure with which the clutch can then be fixed presses the inner cone profile so tightly against the crankshaft end cone profile that the positioning effect of the woodruff key is made unnecessary... The nut is machined from solid metal and not die-cast or pressed and fits like no other :-)
Since this precision machined clutch fixing nut needs no safety washer, the use of a thread locking gel is necessary for a safe and enduring use of your motor.