After checking my tire, it is not goodyear duraplus but Good Year Ducaro GA.
Here are the spec:
Goodyear took their unique Bubble-Blade Design and created a new, expanded Bubble-Blade II System for Ducaro GA. This new system improves handling on wet roads by as much as 10%. A driver's ability to corner on wet curves and brake quickly is greatly enhanced, too. Another benefit of the Bubble-Blade II System is maximum driving comfort and greatly reduced road noise. As much as 6% in some cases
FEATURES AND BENEFITS
Goodyear's Bubble-Blade II System Significantly increases traction while decreasing road noise
Modified tyre cavity Increases tyre-to-road contact for surer handling and comfort
Unique decoupling groove Balances footprint pressure for even wear, better mileage and less noise
Double sequencing tread Operates at individual rates to ensure a quiet performance