TreadSize

Decoded sidewall size

130/70R18 tire size

130/70R18 in inches: 25.17" overall diameter — 5.12" wide, 3.58" sidewall.

Methodology: dimensions are calculated from standard ETRTO tire-size formulas. Last reviewed June 2026 by the TreadSize editorial team.

130/70R18 tire detail photo with TreadSize diameter, width, and rim measurement card
Overall diameter 25.17 in 639.2 mm
Section width 5.12 in 130 mm
Sidewall height 3.58 in 91 mm
Revs / mile 801 speedo calibration

Before you fit 130/70R18: verify the vehicle placard, load index, speed rating, wheel offset, and full-lock/full-compression clearance. Nominal dimensions do not guarantee a safe physical fit.

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Full dimensions

Measurement Metric Imperial
Overall diameter 639.2 mm 25.17 in
Section width 130 mm 5.12 in
Sidewall height 91 mm 3.58 in
Rim diameter 457.2 mm 18 in
Circumference 2008.1 mm 79.06 in
Revolutions per mile 801.4
Aspect ratio 70%

NHTSA safety record for 130/70R18

Drawn from official U.S. government (NHTSA) consumer complaint and recall filings for this exact tire size — not the generic averages you'll find elsewhere.

Complaints on record 12 filed with NHTSA
Recalls on record 0 none on record

What owners report fails — 130/70R18

  • Cracking 11

These are unverified consumer reports and manufacturer recalls filed with the National Highway Traffic Safety Administration — not validated failure rates, and not adjusted for how many tires of this size are in service. Popular sizes naturally accumulate more reports. Use this as a research signal, not a verdict on any specific tire. Data as of 2021. Source: NHTSA Office of Defects Investigation (public domain). Always check the latest recalls at NHTSA.gov and report a tire problem if you have one.

How 130/70R18 compares inside the NHTSA size dataset

Complaint rank #124 of 271 among 271 safety-record sizes
Vs dataset median 2 above median 10 complaints
Top failure share 92% Cracking

This comparison is derived only from tire sizes that have a real NHTSA complaint or recall record in the TreadSize dataset. Source: NHTSA ODI — Consumer Complaints (FLAT_CMPL) + Recalls (FLAT_RCL), U.S. DOT public domain; Complaints through 2021.

Nearby safety records by complaint volume

255/65R16 12 complaints · 1 recalls 125/70R18 12 complaints · 0 recalls 215/75R16 12 complaints · 0 recalls 225/50R16 12 complaints · 0 recalls 235/45R18 12 complaints · 0 recalls 255/35R18 12 complaints · 0 recalls 255/70R15 12 complaints · 0 recalls 265/75R15 12 complaints · 0 recalls

Dataset download: JSON or CSV. Latest recall lookup: NHTSA.gov.

Related tire sizes

150/70R18 →
Decode another tire size →  ·  Compare two sizes →  ·  Plus sizing →

Frequently asked questions

What is the overall diameter of a 130/70R18 tire?

A 130/70R18 tire has an overall diameter of 25.17 inches (639.2 mm).

How tall is a 130/70R18 tire?

The sidewall height is 91 mm (3.58 inches), and the overall diameter from the ground to the top of the tire is 25.17 inches.

How many revolutions per mile does a 130/70R18 tire make?

A 130/70R18 tire makes approximately 801 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 130/70R18 tire fit?

A 130/70R18 tire is designed for a 18-inch rim (457.2 mm).

Are there recalls or safety complaints for 130/70R18 tires?

NHTSA has 12 consumer complaints on record for the 130/70R18 size; the most reported issue is cracking (11 reports). These are unverified consumer reports, not validated failure rates, and are not adjusted for how many tires of this size are in service.

All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.