Tanim - AutoChartGuide (Page 2)

Wheel spacer infographic showing how spacers change track width, wheel offset, brake and suspension clearance, and vehicle stance

Tire-Wheel

Wheel Spacers: The Four Specifications They Change

A spacer changes effective offset, thread engagement, what centers the wheel and the load path through the hub. Each one, without a product in sight.

Wheel stud thread pitch guide explaining M14x1.5 and other common wheel stud sizes for proper lug nut fitment and wheel safety

Tire-Wheel

Wheel Stud Thread Pitch: Reading M14x1.5 and Its Cousins

Threads that are close are more dangerous than threads that do not fit. Here is how a designation is structured and how to identify yours with a gauge.

Lug nut seat types comparison showing conical, ball, and flat seat designs with wheel fitment examples and safety guidance

Tire-Wheel

Lug Nut Seat Types: Conical, Ball and Flat Explained

Threading on and seating correctly are two different things. Here is what the seat does in the joint and why a mismatch fails even at the correct torque.

Hub-centric and lug-centric wheel comparison showing center bore fit, wheel centering, vibration differences, and hub-centric ring use

Tire-Wheel

Hub-Centric vs Lug-Centric: Center Bore and Vibration

Something has to center the wheel, and the two systems use different things. Here is what changes for the studs when the wrong one is doing the job.

Backspacing vs wheel offset infographic showing measurement points, positive and negative offset, and conversion between inches and millimeters

Tire-Wheel

Backspacing vs Offset: Converting Between Two Systems

They measure the same geometry from different reference points. Converting needs a third number, overall width, and stated width is not overall width.

Wheel offset ET guide showing positive, zero, and negative offset and how changing wheel offset affects fitment, clearance, handling, and stance

Tire-Wheel

Wheel Offset (ET) Explained and What Changing It Does

Offset is where the mounting face sits relative to the wheel's centerline. What moving it does to track, clearance and the load path through the hub.

Wheel bolt pattern measurement guide showing how to measure 4, 5, 6, and 8-lug wheels for correct fitment

Tire-Wheel

How to Measure Bolt Pattern on 4, 5, 6 and 8-Lug Wheels

Even lug counts measure straight across. Odd counts do not, which is why five-lug confuses people. Here is the method, plus the two-convention trap.

UTQG tire rating guide explaining treadwear, traction, and temperature grades shown on a tire sidewall

Tire-Wheel

UTQG Explained: Treadwear, Traction and Temperature

Treadwear grades are assigned relative to each manufacturer's own reference, which makes cross-brand comparison far weaker than the numbers suggest.

Tire speed rating guide showing a Y-rated tire, speed rating chart, and the safety risks of choosing a lower speed rating

Tire-Wheel

Tire Speed Rating Explained: What Downgrading Costs

The speed rating certifies more than top speed. It is a proxy for construction and heat tolerance, which is why 'I drive slowly' is not the whole argument.

Tire guide comparing load range, load index, and ply rating, showing the differences between tire strength class, weight capacity code, and construction rating

Tire-Wheel

Load Range vs Load Index vs Ply Rating: Three Systems

One tire can carry an E, a 121 and a 10-ply marking. They are three systems from three eras, and you cannot convert between them by reasoning.

ire load index 95 highlighted on a tire sidewall with a comparison of lower and higher load capacity ratings

Tire-Wheel

Tire Load Index Explained: Why Lower Is Never Free

The load index is an index into a standard table, not a weight, and the scale is not linear. Here is what it rates and why going lower is never neutral.

Compare LT vs P tires to understand how the service type letter affects strength, load capacity, comfort, durability, and everyday driving.

Tire-Wheel

LT vs P Tires: What the Service Type Letter Changes

P, LT, ST and XL are not quality grades. They describe service type and rating conventions, and swapping between them changes how the tire is rated.