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Wheel Backspaces/Offsets and Sizes We Offer

January 17, 2025 by
Wheel Backspaces/Offsets and Sizes We Offer
BUDNIK PROGRAMMING

Lip Profiles

Fat Lip (Smooth) Profile

Our Fatlip outer rim profile is by far the most popular. It sports a larger diameter center, more offset flexibility and extra strong double-wall beads. Featuring a smooth profile this style delivers that deep deep dish especially when paired with wide wheels and minimal backspacing. Our Budnik Polish reflects your design in the dish to provide some mind-bending looks.

Traditional (Step-Lip) Profiles

You can't go wrong with the good old traditional look. Produced in a smaller diameter center, wider drop center, outward facing valve stem and a little bit more limited in offset availability the Traditional Step-Lip is the standard and for good reason.


See above the "Fat Lip" profile on the left and "Traditional Lip" profile to the right. This visual representation depicts the real differences between each of the profiles. From the double wall bead on the Fat lip and the large drop center in the Traditional style. The wide side of the Fat lip which is shown closer to you and the drop center bulge on the Traditional lip style rim is where our centers are mounted. 

Diameters

We offer our designs in a wide range of sizes allowing you to have the design you want in the size you need it. See below to see our offerings. There are certain designs and series that are not offered in certain sizes double check the series or product pages to see up to date size offerings.

Fat Lip Sizes

Available in 17, 18, 19, 20, 22 and 24 inch diameters.

Traditional Lip Sizes

Available in 15, 17, and 18 inch diameters.

Widths

Widths available vary depending on the wheel diameter see the table below for the available widths for each diameter and profile. 

**See the above Image for reference. It is important to note that the "width" of your wheel is measured from the inside bead to bead, NOT from the outside faces across. See the Image below for the outside to outside measurement which is NOT the "width" of the wheel**

This image shows the OVERALL WIDTH of a rim, which is measured from outside to outside. We find this value useful for determining your backspace however when ordering your wheels you will always be working with the Bead to Bead measurement shown before. 

​​Fat Lips: ​​​ ​Traditional Lips:

15" - Not Available ​​​15" x 4" / 5" / 6" / 7" / 8" / 9" / 10" / 12" / 14" / 15"​​

​17" x 7"/ 8" / 9" / 10" / 11" ​​​17" x 7" / 8" / 9.5" / 11" 

​18" x 7" / 8" / 9" / 10" / 11" / 12"  ​18" x 7" ​/ 8" / 9.5" / 10" / 11"

​19" x 8" / 9" / 10" / 11" / 12"

​20" x 8.5" / 9" / 10" / 10.5" / 11" / 12" / 15"

​22" x 8.5" / 9" / 10" / 10.5" / 12"

​24" x 9" / 10" / 12" / 14" / 15"

Backspace, Frontspace and Offsets

​The backspace of your wheel is simply the measured distance from the back face of the outer rim to the mounting surface, or "pad", of the wheel. The Frontspace is simply the inverse of the backspace, so measured from the mounting pad to the front face of the outer wheel.

​In order to check your frontspace or backspace, you should take the sum of the two numbers. This sum will add up to whatever the width of your wheel is plus an additional inch. 

​We prefer to work with backspacing as it is a relatively simple number for you to find on your vehicle. Taking the distance from your wheel mounting surface to your suspension or measuring the current wheels on your car is simple and easy to communicate. 

​It is common to also deal in "offsets", which is the measurement of offset from the centerline of a wheel. While many other companies use this value to handle fitment, we prefer backspacing. If you do already know your offsets we can help you convert that to a backspace and find a similar fitment.

Caliper Clearance and Hub Clearances

There are a few measurements which are absolutely critical to fitment. These include your caliper clearance pad and hub bore diameters. Without enough caliper clearance you risk interference between your wheel spokes and caliper, and without a large enough bore diameter your hub will prevent you from mounting your wheel.

In order to measure your needed caliper clearance, use a straight edge from your mounting surface out to your caliper and measure from the mounting pad to the point on the caliper which is furthest from the mounting surface. Alternatively, if you have a custom brake kit you typically can find drawings on the manufacturers website which will tell you exactly the caliper stick out value.

We can take this number and add some clearance to it, allowing for flexion and temperature based expansion, ensuring no conflicts between your wheel and braking system. We find that a 1.1" pad is typically enough clearance, however in many cases the front brakes are larger and a 1.5" pad becomes necessary.


The second critical clearance is your hub bore. Our wheels are not designed to be hub centric for all applications and instead are stud centric. This means that our center bores are meant to fit around your wheel hub and not necessarily be a snug fit. Our standard bore sizes are 3.072", 2.78", 3.43", and 4.25" with 3.072" being our standard which works on most vehicles. While it does "tend" to work it is not guaranteed, so please measure your center hub diameter and ensure that it will fit in both diameter and length. Some vehicles have an extraordinary length center hub. In these cases when lengths go past 2 or even 3 inches we need to add some clearance pad or change center caps to accommodate. 


Hopefully this guide clears up some general questions you may have. If you have any questions or need assistance with measuring, fitment, or general advice; don't hesitate to call us at (714)-892-1932.


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