225/55ZR17 Tire Size

All You Need to Know About 225/55ZR17 Tires

225/55ZR17 tires measure approximately 26.7 inches in overall diameter, about 8.9 inches in width, and fit 17-inch wheels. Although the size shares the same dimensions as 225/55R17 tires, the ZR designation places it within a higher-speed tire category commonly associated with performance-oriented touring and reinforced all-season tire lines.

Compared with shorter low-profile ZR fitments, 225/55ZR17 operates with a noticeably taller sidewall. That changes the tire’s role entirely. Instead of prioritizing maximum steering sharpness, the size is more associated with:

• highway comfort
• long-distance stability
• load support
• daily-driving refinement
• high-speed touring capability

This makes 225/55ZR17 fundamentally different from aggressive ultra-low-profile ZR categories used on sports coupes and track-oriented vehicles.

225/55ZR17 Size Quick Specs

• Circumference: approximately 83.8 inches
• Sidewall height: approximately 124 mm, or 4.87 inches
• Common service descriptions: 97W, 101W XL
• Wheel diameter: 17 inches
• Approved rim width range: 6.0-8.0 inches
• Section width: 225 mm, or approximately 8.86 inches
• Overall diameter: approximately 26.7 inches
• Measuring rim width: 7.0 inches

Why 225/55ZR17 Is More Touring-Oriented Than Most ZR Sizes

225/55ZR17 uses substantially more sidewall height than lower-profile performance fitments. That additional sidewall changes how the tire reacts to:

• road impacts
• expansion joints
• highway imperfections
• heavy passenger loads
• long-distance heat cycles

The 225/55ZR17 taller sidewall improves ride isolation and pothole tolerance compared with 45-series or 40-series tires, while the ZR designation still keeps the size within a higher-speed performance category than standard touring applications. This balance made the size common on:

• touring-oriented sedans
• larger front-wheel-drive platforms
• vehicles requiring a taller 17-inch performance-touring fitment
• comfort-oriented OEM sport packages

Recommended 225/55ZR17 Tires

• Continental ExtremeContact DWS06 Plus
• Hankook Ventus S1 AS H125
• Falken Azenis FK460 A/S
• General G-Max AS-07
• Kumho Ecsta PS31
• GT Radial Champiro UHP AS

How 225/55ZR17 Differs From Standard 225/55R17 Tires

225/55ZR17 share the same physical dimensions with  P225/55ZR17 and 225/55R17 tires . The difference is primarily tied to tire category and construction focus.

Compared with many standard 225/55R17 touring tires, the 225/55ZR17 designation is more commonly associated with:

• high-speed touring tire families
• performance-oriented all-season models
• reinforced XL constructions
• higher-speed service descriptions

Many 225/55ZR17 tires are engineered to maintain stability during sustained highway-speed driving while preserving comfort expected from a taller touring sidewall.

225/55ZR17 and Highway Stability

Because of its taller overall diameter and longer sidewall, 225/55ZR17 behaves differently at highway speed than lower-profile performance tires. The size is often chosen for:

• smoother long-distance ride quality
• reduced impact harshness
• stable highway tracking
• daily-driving refinement

Compared with shorter 45-series fitments, the taller sidewall absorbs more road vibration before it reaches the suspension and cabin. The trade-off is that steering response is usually less immediate than on lower-profile ultra-high-performance applications.