Metzeler Lasertec Rear tyre 130/70/H17 GPZ 500S D1 (93) ->
Correct tyre sizes for A1-A6 machines are

100/90/H16 Front, and 120/90/H16 Rear.

Correct tyre sizes for D1-> machines are 110/70/H17 and 130/70/H17 Rear.

It is illegal to mix:-
Bias belted front with Crossply rear
Radial front with Crossply rear
Radial Front with Bias belted rear