Department · 13 guides

Wheels & Tires

Custom wheels, aftermarket rims, tire selection guides, and everything rolling beneath your vehicle.

Within this department Custom Wheels9Product Review3Car Buying Tips2

Covered by Danny Kowalski, Wheels & Accessories Editor.

Start here Dial in wheels and tires

Choose fitment and compounds around real roads, climate, and long-term tire wear.

  1. Choose staggered or square fitment

    Staggered Setup vs. Square — When Each Wheel Fitment Choice Actually Makes Sense

    5 min

  2. Understand wheel construction

    Flow-Forged vs Cast Wheels: What You Actually Get for the Price Difference

    6 min

  3. Read tire wear before buying

    Tire Wear Patterns: When to Check Alignment

    4 min

Tools for this department 2 of 6

All tools
Live tool · Tire size

Check the size before you order the set.

Diameter, sidewall and the speedometer error for any two sizes. A small difference does not approve a size, so check the vehicle's placard.

Current

Reads 225/45 R17

New

Reads 235/40 R18

Overall diameter25.4 in645 mm, was 25.0 in
Change+1.7%within 3% of the current size; still check the door placard
Sidewall94 mmwas 101 mm, less sidewall
Est. speed at 6061.0 mphestimated road speed when the dial reads 60; 794 revs/mile, was 808
Open the full calculator

The two sizes carry over to the full calculator.

Pair a tool with a guide. Read Staggered Setup vs. Square first, then use the Tire Size Calculator on the sizes you are weighing.

All 13 guides Latest update first

2026

11 guides published or refreshed

DateGuideRead time
Revised Tire Wear Patterns: When to Check Alignment

Danny Kowalski

4 min
Revised All-Season vs. All-Weather vs. Winter Tires

Danny Kowalski

4 min
Revised Expensive Custom Wheels: Prices and Fitment

Danny Kowalski

5 min
Revised Michelin Pilot Sport 5 vs ExtremeContact Sport 02: 2026 Comparison

Danny Kowalski Affiliate links

6 min
Revised Wheel Offset and Fitment Basics for Beginners

Danny Kowalski

5 min
Run-Flats vs. Standard Tires in 2026 — When the Run-Flat Tax Is Worth It, and When It Isn't

Danny Kowalski

9 min
UTQG Ratings Explained — What Treadwear, Traction, and Temperature Numbers Really Tell You

Danny Kowalski

7 min
Revised Top Rim Styles and How to Choose Wheels That Fit Right

Danny Kowalski Affiliate links

3 min
Staggered Setup vs. Square — When Each Wheel Fitment Choice Actually Makes Sense

Danny Kowalski Affiliate links

5 min
Summer Tire Shopping 2026 — What's Actually Worth the Premium This Year

Danny Kowalski Affiliate links

5 min
Flow-Forged vs Cast Wheels: What You Actually Get for the Price Difference

Danny Kowalski

6 min
2025

1 guide published or refreshed

DateGuideRead time
Quiet Ride vs Sharp Handling: Choosing Summer Tires for Real Roads

Danny Kowalski

5 min
From the archive

Older coverage, kept for the record

DateGuideRead time
Featuring Wheel Specialists Inc. in Tempe, AZ

Danny Kowalski

3 min

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