Ultralite Rotors – Part No: 160-8135
Call (805) 388-1188
Ultralite 32 Vane Scalloped Rotor
Prod #: 160-8135
Price: $97.14

Ultralite 32 Vane Scalloped Rotor – Product Summary

Rotor Dimensions
Width (in) 0.81
Diameter (in) 11.75
Mount Side
Rotor Design
Material Iron
Vane Count 32 V
Weight(Lbs) 5.4
Rotor Style & Finish
Type UL Scalloped
Style Plain Face
Surface Finish Plain
Rotor Upgrades
Bedded No
Balanced No
UPC Number
UPC 889545040432
160-8135 – Product Description

Ultralite 32 Vane Scalloped Rotor

When it comes to rotors, racers are constantly searching for the ultimate balance between the lowest weight and the ability to effectively manage heat. Decreased rotating weight in the drive line provides quicker deceleration under braking and quicker acceleration out of the corners. Lower weight also benefits handling with improved spring and shock control over the unsprung suspension mass. Wilwood's ULS-32 scalloped iron rotors provides effective lightweight options for sprints, late models, modifieds, and other competition applications that race in low to medium temperature ranges.

Performance Characteristics
• Scalloped Rotors are unsafe for street use.
• Suitable applications: Light Dirt Racing

• Can result in failure if misused.

Vehicle Applications
Driving Environment Late Model Dirt
Vehicle Sub-Types STARS, UMP, IMCA, etc...
Application Duty Light Duty
Driving Environment Northeast Modified
Vehicle Sub-Types Dirt or Pavement
Application Duty Light Duty
Driving Environment Open Wheel
Vehicle Sub-Types Sprint, Midget, etc… Dirt or Pavement
Application Duty Light Duty

Additional Rotor Dimensions

Rotor Bolt Circle (in) 8 x 7.00
Rotor Mount Hole Size (in) 0.326
Lug ID / Registration (in) 6.38
Far Side Inside Diameter (in) 8.34
Offset Dimension (in)

Shoe Inside Dimension (in)
Clearance Inside Diameter (in)
Wheel Bolt Circle (in
Stud Diameter (in)
Face Thickness (in)

Additional Notes

ULS-32 Series Scalloped Rotors feature a fully machined scallop configuration that provides the highest degree of weight reduction on a vented straight vane iron rotor. Scallop machining will remove as much as three pounds, or nearly 33% of the rotor mass. The vented castings provide increased cooling capacity over machined steel plate rotors, with improved structural durability over drilled rotor designs.




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