Bi-piston segment Ø40,3mm for TNT TNT 50cc aluminum and original kit minarelli am6

Here is the original type Ø40.3mm piston diameter. Ideal to change the worn piston, tight your 50cc TNT kit or your original cylinder am6 euro 2 aluminum. Comes complete with pin, piston rings and clips! Quality level, we must be clear, we are far from true origin, it was worth the money!