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Illustration "A"

Common Racing Wheel Questions & Topics

Lug Nut Torque Specifications*


Most Steel Circle Track Wheels require a hardened steel 1" oversize, open-ended lug nut ​with a
45 degree seat chamfer.  Before going to the track, always use a torque wrench and torque lugs to 85 ft-lbs.  For brand new wheels, make sure to re-torque after the first use because as the powder-coat paint gets worn-off, it can cause the lug nuts to loosen slightly. A good rule of thumb for lug nut torque settings are as follows:   


7/16” Wheel Stud = 75-85 ft-lbs    1/2" Wheel Stud = 85-95 ft-lbs     5/8” Wheel Stud = 130-140 ft-lbs

IMPORTANT NOTE & DISCLAIMER:  Users should ALWAYS check with the wheel stud manufacturer and the wheel manufacturer for exact torque specifications they should use.

* Base Info Source:  Bassett Racing Wheels FAQ's (click here)

 This Tech Page Is Intended To Help Customers Make An Informed Buying Decision 

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Illustration "B"

 ​​Determining the Bolt Pattern of Your Wheel - What is a Bolt Pattern?

The bolt pattern of a wheel tells us the number of lugs (or bolt holes) and the diameter of the circle the lugs sit on.  

For example, a 5 on 4-1/2" bolt pattern lets us know we need a wheel with 5 lugs that are spaced out evenly on a circle that has a 4-1/2" diameter. 

Measuring Wheel Width and Wheel Rear Spacing


The two key measurements to be considered before buying racing wheels
​are WHEEL WIDTH and WHEEL REAR SPACING.


WHEEL WIDTH - This may be determined by measuring the distance
between the inner edges of the rim beads.  See Illustration "A" at the right.


WHEEL REAR SPACING - To measure rear spacing, place wheel face down,
​lay a straight edge or rule across the back of the wheel and measure down
to the mounting pad surface.  See Illustration "B" at the right.

Jump To: Bolt Patterns | Diameter/Rear Spacing | Lug Nut Torque Specs 

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Knowledge Is Key To Choosing The Right Parts For Your Race Car, Driver & Team

Jump To: Bolt Patterns | Lug Torque Specs 

 To determine the bolt pattern on a wheel,
use the number of lugs and the bolt circle:

For wheels with an EVEN number of lugs:

Measure CENTER-to-CENTER on lugs directly
​across from each other

For wheels with an ODD number of lugs:

Measure from the CENTER of one hole to the
​BACK of the second hole as shown at the right.


NOTE:  With an odd number of lugs, there is not a lug directly opposite
​any hole, so finding the circle diameter can be challenging.
 

Jump To: Bolt Patterns | Diameter/Rear Spacing

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