i had a look on the Polish website and find very cheap pistons they say its for Nsr 250 but there are 2 types, they are both 90pln each which is around 17GBP
1
Piston WIDTH: 54.00 MM

Terminals SIZE: 15mm

HEIGHT OF IP Terminals

Piston to the top edge: 22mm

2

Piston WIDTH: 54.25 MM

Terminals SIZE: 15mm

HEIGHT OF IP Terminals

Piston to the top edge: 22mm
They both come with rings. which one are we to use?
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