What do wheel numbers mean?

The wheel size is the size designation of a wheel given by its diameter, width, and offset. For example, 17 x 8.5 x +35 designates a diameter of 17 inches, width of 8.5 inches, and +35 mm positive offset (432 × 216 x +35 in fully metric numbers).

How do you measure wheel distance?

How to Use a Measuring Wheel

  1. Make sure the wheel surface is clean. Any dirt or loose impediments can affect the measurement.
  2. Place the tool exactly where the measurement starts.
  3. As you walk, keep a steady pace.
  4. When you reach your ending point, pick the device up.
  5. Take your measurement.

What does 18×8 rims mean?

18×8 means the wheel is 8″ wide and ET45 means the wheel has a 45mm offset. Your second-generation tC O.E. wheel is 7.5″ wide with a 39mm offset. This means the edge of an 18×8.

What is J in wheel size?

The letter “J” means a tyre bead profile. This is the marking used to define the wheel collar profile you should never ignore. Wheel collars and tyres must be compatible.

How do you read a wheel offset?

Offset is simply backspacing minus the centerline, which in some cases may be a negative number. See all 15 photos Measuring offset is easy. Start by laying a straight edge across the rim’s backside and measure the distance between its bottom edge and the wheel’s hub-mounting surface.

Are measuring wheels accurate?

The key word is estimate, as a measuring wheel is an estimating device. It makes no pretense at being a precision measuring instrument. Though, under IDEAL conditions, measuring wheels can be accurate to within 3 inches per 100 feet, that’s +/- . Deviations from a straight line will also affect accuracy.

How is the size of a car wheel measured?

Wheel Size: Wheels are sized according to their diameter and width measured from the tire mounting surfaces, usually in inches. A wheel with a 17″ diameter and 8.5″ width would be listed as a 17 x 8.5″ wheel.

How do you measure a 5 lug wheel?

Wheel Bolt Pattern Guide The easiest way to estimate the 5 lug bolt pattern, is to measure from the back of a hole to the center of the second hole. For a 4 lug wheel, measure center to center of two holes directly across from each other. Measuring a 6 bolt wheel requires you to measure center to center of two holes directly across from each other.

How do you measure a 6 bolt wheel?

Measuring a 6 bolt wheel requires you to measure center to center of two holes directly across from each other. To measure an 8 lug bolt pattern, measure center to center of two holes directly across from each other.

How to measure wheel bolt pattern Speedway Motors?

The easiest way to estimate the 5 lug bolt pattern, is to measure from the back of a hole to the center of the second hole. For a 4 lug wheel, measure center to center of two holes directly across from each other.