Stud-kit -M7 x 158mm- -POLINI- (used for cylinder Vespa V90, PV125, ET3, PK80, PK125 (with crankshaft stroke=54mm))

Cylinder stud bolt set consisting of:

• 4x stud bolt M7x158mm (thread length 20mm + 25mm)
• 4x washer M7
• 4x nut M7 (stepped)

Ideal set for cylinders which are driven with a thick spacer for a long connecting rod.
18mm longer than the standard bolts.
An ideal complement are the high-strength Naraku collar nuts which are much harder than the nuts supplied by Polini.