NSR-lizard wrote:

Neal wrote:I am sure that nsr125 use a 16mm gudgeon pin. ?

And...?

So does an NSR150!

So what small end bearing do they use on the Tyga 300 cc kits?
Surely that is a NSR150 piston with a 16mm pin. Standard NSR150 s/e bearing is 16/20 x 19 wide, but NSR250 s/e bearing is 15/19 x 17?