Chrysler PT CRUISER, TURBO & CONVERTIBLE Bolt Pattern and Wheel Dimensions
Wheel and Bolt Pattern Cross Reference

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CHRYSLER PT CRUISER, TURBO & CONVERTIBLE Wheel and Bolt pattern Sizes:

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Additional Wheel / Measurement Information

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Key Identifying Wheel Dimensions: Wheel Bolt or Lug Pattern (or bolt circle, lug circle, lug pattern, etc.) is the measured diameter of an imaginary circle formed by the centers of the wheel lugs or bolt holes. Bolt patterns can be 3, 4, 5, 6, 7, 8 or 10 lug holes. A bolt circle of 5 x 4.5 would indicate a 5 lug bolt pattern on a circle with a diameter of 4.5 inches, for example.

Identifying Wheel Dimensions

There are four important measurements that are used to categorize and identify a wheel for fitment purposes.

1. Rim Diameter This is the actual diameter of the wheel at the point where the tire bead seats (NOT the outer lip of the rim).
2. Rim Width Measure this from the inside of the outer lip at the bead seating point to the inner lip.
3. Back Spacing A very important measurement, it’s from the inside of the wheel at the point where it contacts the hub, brake drum or axle flange to the inside edge (lip) of the wheel.
4. Bolt Pattern Count the number of mounting holes for the wheel and determine the diameter of a circle that would run through their center. On an even number wheel (e.g. 4, 6, 8 or 10 lug wheel), it’s a direct measurement. On an odd number wheel (e.g. 3, 5 or 7 lug wheel), you can measure from the CENTER of one hole to the OUTER EDGE of the hole diagonally across from it.

How To Measure Wheel Bolt Pattern

Use the number of lugs and the bolt circle:

If there is an EVEN number of lugs: Measure center-to-center on lugs directly across from each other. If there is an ODD number of lugs: Measure from the CENTER of one lug to the OUTER EDGE of the hole diagonally across from it.

Lug Nuts and Torque

Torque Sequence:

All alloy wheels should be installed using a torque wrench. This ensures that the wheels are not too tight or too loose. Check your vehicle’s manual for correct settings. When you install wheels for the first time, you should re-torque wheels after about 100km to 150km (60 to 90 miles). Always refer to Owner’s Manual for proper factory specifications that take precedence over the listed recommendations. 12mm = 70~80, 7/16 = 55~65, 1/2 = 75~85, 14mm = 85~95, 9/16 = 95~115, 5/8 = 135~145.

More Info: The Importance of Torquing Lug Nuts / Bolts

Hub Center Bore

Hub Center Bore: Relates to the center hole in the wheel that centers the wheel on the hub of the car. Since most wheels are mass produced, they have a large center bore to accommodate several different vehicles. If this is the case, it is recommended that you use a hub ring. Hub rings are hard plastic or metal ring that fits between the wheel and the vehicle. This centers the wheel perfectly on the hub ensuring that there is no run out when the wheel is installed on to the vehicle. Without hub rings it is possible to get vibrations even if the wheel / tire assembly is perfectly balanced.

Wheel Offset

Wheel offset is the distance from the mounting surface of the wheel to the true center line of the rim. A positive offset means the mounting surface of the wheel is positioned in front of the true center line of the rim / tire assembly. This in effect brings the tire in to the fender well more. Conversely, a negative offset means the mounting surface of the wheel is behind the true center line of the rim / tire assembly. This will cause the tire to stick out away from the vehicle.

H = High - Positive Offset, typically FWD (Front Wheel Drive) +45, 40, 35 offsets

M = Medium - Neutral Offset, typically RWD (Rear Wheel Drive) +20 offset

L = Low - Zero to Negative Offset, Offset typically RWD (Rear Wheel Drive) 0 offset

Wheel and Tire How To Videos:

Helpful Wheel, Rim and Tire Resources:

Common Bolt Pattern Conversions

How to Measure Bolt Pattern Bolt pattern - diameter of an imaginary circle formed by the centers of the wheel lugs.

Wheel Lug Nut / Bolt Torque Sequence Correct Wheel Lug Nut / Bolt Torque Sequence - 4 lug, 5 lug, 6 lug.

How to Measure Wheel Back Spacing This measurement is important to be sure you have proper wheel clearance.

How To Read A Tire Sidewall Learn to understand the common markings found on tire sidewalls.

Wheel, Tire and Fender Fitment Calculator Calculate Wheel Fitment, Tire Stretch and Rolling Radius. Includes Speedometer Error Calculator. Play with specs, try different settings and combinations, compare results.

Tire Size Change / Speedometer Calibration Calculator This calculator is designed to give information related to tire size changes and the general impact they have on the calibration of a speedometer. It determines speedometer error and tire size information based on published and generally accepted tire dimensions as given by the standard US tire system (i.e. 205/45-ZR16). All calculations are based on the assumption of a new tire (as opposed to used) where the numbers on the tire accurately represent the dimensions.

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This information is accurate to the best of our knowledge. No warranties or guarantees are expressed or implied as to the accuracy of the information provided on this site. Use of this site constitutes your agreement to these terms.

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Legend

 

Hub Center Bore: Relates to the center hole in the wheel that centers the wheel on the hub of the car. Since most wheels are mass produced, they have a large center bore to accommodate several different vehicles. If this is the case, it is recommended that you use a hub ring. Hub rings are hard plastic or metal ring that fits between the wheel and the vehicle. This centers the wheel perfectly on the hub ensuring that there is no run out when the wheel is installed on to the vehicle. Without hub rings it is possible to get vibrations even if the wheel / tire assembly is perfectly balanced.

Torque: All alloy wheels should be installed using a torque wrench. This ensures that the wheels are not too tight or too loose. Check your vehicle's manual for correct settings. When you install wheels for the first time, you should re-torque wheels after about 100km to 150km (60 to 90 miles). Always refer to Owner's Manual for proper factory specifications that take precedence over the listed recommendations. 12mm = 70~80, 7/16" = 55~65, 1/2" = 75~85, 14mm = 85~95, 9/16" = 95~115, 5/8" =135~145.

Bolt Pattern: Also lug pattern or bolt circle, is the diameter of an imaginary circle formed by the centers of the wheel lugs. Bolt patterns can have 3, 4, 5, 6, 8 or 10 lug holes. The bolt pattern is comprised of two numbers - the first indicates how many bolt holes are on the wheel, and the other describes how far apart they are. for example, a bolt circle of 5x108 would indicate a 5 lug bolt pattern in a circle with a diameter of 108mm.

Dual Bolt Pattern: More and more manufacturers are building their wheels with two bolt patterns. This expands the number of fitments the wheel applies to. For example: a wheel with a 4-100/114.3 bolt pattern has 8 lug holes and will fit both 4-100mm and 4-114.3mm fitments.

Wheel Plus Sizing

Plus sizing your wheel & tire combination was designed to enhance vehicle performance and looks by allowing fitment of larger diameter rims and lower profile tires. The theory is that while making these changes, you keep the overall tire diameter within 3% of the original equipment tires. This is important because larger variances can cause problems with transmission shift points which can decrease fuel mileage. It can also confuse braking system computers which can even lead to brake failure.

Here's the rule of thumb for "plus sizing":

Plus 1:

• Increase section width by 10mm
• Decrease aspect ratio by 10 points
• Increase rim diameter by 1 inch

Plus 2:

• Increase section width by 20mm
• Decrease aspect ratio by 20 points
• Increase rim diameter by 2 inches.

Learn More About Wheel Plus Sizing