You CAN purchase a wider tire and still have the same overall diameter which will keep youre speedo correct. 245/45/17, 275/40/17, and 315/35/17 all have the same O/D within .2" with most tire manufacturers.
You CAN purchase a wider tire and still have the same overall diameter which will keep youre speedo correct. 245/45/17, 275/40/17, and 315/35/17 all have the same O/D within .2" with most tire manufacturers.