What do markings on rims mean?
What do rim size numbers mean? This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel. The wheel size also includes its width and offset. The width is the distance from each bead seat (from inside to the outside).
How do you read a car rim?
The second number is the diameter of an imaginary circle in inches or millimeters that runs through the center of each of the studs or in this case 170 millimeters on a 4 6 or an 8 lug wheel.
Where are the wheel markings?
Located on the inside of the wheel, wheel markings are a series of numbers and letters that provide coded information about the wheel such as its diameter, width or offset.
What does J mean in rim size?
Inner width of wheel in inches (6 ½ x 25.4mm= 152.4mm). J. Indicates the shape of the wheel on the place where the tyre bead sits on the wheel. x. Indicates that the construction of the wheel is one-piece.
Where are the stud patterns on my rims?
How to Find your Wheel Bolt Pattern | Wheel Tips – YouTube
What is JJ in rim?
JJ refers to the contour of the bead seat on the wheel, essentially its shape ( “J” indicates the shape of the letter J).
How do you read bolt pattern on rims?
Where is the offset stamped on a wheel?
Most wheels will have their offset embossed on the back of the wheel, either on the mounting plate itself or on the back of one of the spokes. Offset data usually, but not always, ends with the letters “ET” (which means the same thing as offset); a 45 mm offset will be printed as either ET45 or 45ET.
What does JJ stand for in rims?
asked by: Dale. Helpful Expert Reply: The “JJ” that you mentioned finding on the wheel size listed for the units mounted to your trailer refer to the contour of the bead seat on the wheel, essentially its shape ( “J” indicates the shape of the letter J).
What does 7j mean on wheels?
The wheels width is usually written beside the flange shape marking – e.g: 7j, 7.5j, 8.0j. The width of the wheel is basically the area shown on the photo above and it is measured in inches. In other words, the bigger the number, the “thicker” your wheels are.
What are the different 5 lug patterns?
5-lug patterns consist of the following: 5×98, 5×100, 5×108, 5×110, 5×112, 5×114.3, 5×115, 5×120, 5×120.7, 5×127, 5×130, 5×135, 5×139.7, 5×150, 5×155, 5×165.1 and 5×205. 6-lug bolt patterns are manufactured for mid-size SUVs, full-size SUVs and trucks.
Are all 5 bolt patterns the same?
The five lug pattern remains a common trait for passenger cars and light trucks, even in modern automobile manufacturing, but every company has a different approach. For instance, General Motors wheels had two common bolt patterns, 5×4-3/4-inch and 5×5-inch.
What does H2 mean on a wheel?
the wheel hump
What does H2 mean? This markings stands for the wheel hump, it usually appears at the very end of the wheel markings. It corresponds to the rigidity of the wheel.
How do you measure a 5 lug bolt pattern?
HOW TO: Measure 5-Lug wheel bolt pattern – YouTube
How do I tell what offset my rims are?
How to measure your Wheel Offset / ET accurately – YouTube
Is positive offset in or out?
Positive wheel offset is when the hub mounting surface is in front (more toward the street side) of the centerline of the wheel. Most wheels on front-wheel drive cars and newer rear-drive vehicles have positive offset. Negative offset is when the hub mounting surface is behind the wheel centerline.
What does H2 mean on wheels?
What does H2 mean? This markings stands for the wheel hump, it usually appears at the very end of the wheel markings. It corresponds to the rigidity of the wheel. There are several wheel humps out there.
What is the difference between 7J and 8j wheels?
What does 18x8J mean?
J: this is the width of the wheel from inner to outer rim in inches. so an 18x8J is 18 inches in diameter of course and 8 inches from inner to outer rim.
What is the most common wheel bolt pattern?
The most common wheel patterns for 4×4 vehicles are five-, six-, and eight-lug. Traditionally domestic vehicles have simple fractional distances like 5-on-4 1/2, 5-on-5 1/2, and 8-on 6 1/2. Many modern and foreign wheels have metric distances (millimeters) like 5-on-135 and 8-on-170.
How do you tell what bolt pattern my rims are?
How do I know the bolt pattern on my rims?
Where is wheel offset stamped?
By far, most of wheel brands will stamp the offset number on either the mounting centre or on one of the alloy wheel spokes.
Is the offset stamped on rims?
Nearly every wheel has the offset stamped on it somewhere, usually ingraved on the wheel as a part of the wheel markings (e.g., 6½ J x 15 H2 5/112 ET39 – ET39 means 39mm offset) and its measurement unit is millimeter (mm). The wheel offset can have zero, positive or negative value.
Is negative or positive offset better?
If your offset is too positive, you risk the inside of the tire hitting your suspension. To fix this, bring the offset down, so it’s closer to zero. This moves the tire out. If your offset is too negative, then the outside of the tire will rub on the car’s body and fenders.