110/90-R18 tires are 2.13 inches (54 mm) larger in diameter than 80/90-R18 tires and the speedometer difference is 8.3% 90/90-R14 tires are 1.42 inches (36 mm) larger in diameter than 90/70-R14 tires and the speedometer difference is 7.0%. 140/90-R15 tires are 1.1 inches (28 mm) larger in diameter than 140/80-R15 tires and the speedometer difference is 4.4%. 100/90-R14 tires are 0.42 inches (10.6 mm) larger in diameter than 80/90-R15 tires and the speedometer difference is 2.0%. Cool and dignified cruising with the superior EXEDRA MAX. Tires for American Cruiser Model. Optimum compound and structure/pattern design for cruisers are used. Excellent dry and wet grip performances, as well as long wear life, have been achieved. Recommended for: 130/90-R15 tires are 1.42 inches (36 mm) smaller in diameter than 150/90-R15 tires and the speedometer difference is 5.6%. E235.

80 90 vs 90 80 tire