The Dunlop 195/65 R15 91H is a well-engineered tire that offers a blend of performance, comfort, and safety for a wide range of passenger vehicles. Here's a detailed breakdown of its specifications:

**195**: This number indicates the tire’s width in millimeters, measuring 195 mm from sidewall to sidewall. This width is slightly wider than average, which enhances road grip and stability, contributing to improved handling and traction.

 **65**: This is the aspect ratio of the tire, which represents the height of the sidewall as a percentage of the tire's width. An aspect ratio of 65 means the sidewall height is 65% of the tire’s width. This ratio strikes a good balance between ride comfort and handling performance, providing a smooth ride while maintaining responsive handling.

**R15**: The “R” stands for radial construction, which is the most common tire construction type used for its strength and reliability. The “15” denotes the diameter of the wheel rim in inches that the tire fits, in this case, 15 inches.

**91**: This is the load index, specifying the maximum load capacity the tire can support. A load index of 91 means the tire can carry up to approximately 1,356 pounds (615 kg) per tire, making it suitable for a range of vehicles with moderate to heavy load requirements.

**H**: This letter represents the speed rating of the tire. An “H” rating means the tire is rated for speeds up to 130 mph (210 km/h). This indicates that the tire is designed to handle high-speed driving while maintaining performance and safety.

Overall, the Dunlop 195/65 R15 91H tire is engineered to offer excellent handling, stability, and ride comfort. Its wider width and balanced aspect ratio enhance traction and control, while the radial construction ensures durability and a smooth ride. With its high load and speed ratings, this tire is a reliable choice for everyday driving, providing both performance and safety for various road conditions.