Wilwood UL32 Handed Curved Vane Brake Disc - 11.75x1.25 Inch LH 8x7 Inch PCD

Wilwood Ultra-Light UL32 curved vane rotors provide an excellent balance of efficient cooling with...

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eBayWilwood UL32 LH Curved Vane Brake Discs - 12.19 x 1.25'' Size, 8 x 7.62'' PCD
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Demon TweeksWilwood UL32 Handed Curved Vane Brake Discs - 11.75 X 1.25 Inch, 8 X 7.00 Inch, Left Hand
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Product Information

Full details

The Wilwood Ultra-Light UL32 curved vane rotor is designed for drivers seeking enhanced braking performance in competition, high-performance driving, and spirited street use. Its key benefit lies in the optimized cooling provided by curved vanes and a reduced rotating mass, leading to better heat dissipation and improved handling. A potential caveat for some users may be the requirement for a separate bell for mounting. This rotor offers a balance of efficiency, longevity, and a lower unsprung weight, all at a competitive price point made possible by Wilwood's modern manufacturing capabilities.

All features

Model Part Number160-2899
BrandWilwood

Extended Product Information

FAQs

What is the primary benefit of the curved vane design?

The curved vane design creates an internal air pump that expels hot air more efficiently and draws in cooler air, significantly improving heat dissipation and reducing the risk of brake fade under heavy use.

What material are these rotors made from?

They are cast from premium grade, long-grain carbon iron, which provides excellent thermal stability, wear resistance, and resistance to distortion at high temperatures.

Do these rotors come with a brake bell?

No, Wilwood UL32 rotors are designed to be mounted using a separate brake bell. You will need to source a compatible bell for installation.

Are these rotors handed (LH/RH)?

Yes, these rotors are handed. The product description indicates this is a Left Hand (LH) rotor. It is crucial to select the correct handed rotor for proper installation and performance.

What kind of driving are these rotors best suited for?

They are ideal for a wide range of competition, high-performance, and sport driving applications where enhanced braking and heat management are beneficial.

How do I determine the correct PCD for my vehicle?

PCD (Pitch Circle Diameter) refers to the diameter of the circle on which the wheel bolt holes are located. You need to match the rotor's PCD to the PCD of your vehicle's hub or the brake bell you are using.

Can these rotors be used for daily driving?

While they can be used for daily driving, their primary design benefits are most realized under higher performance demands. For typical daily driving, the advanced cooling and performance features might be more than necessary.

Troubleshooting

Rotor exhibits excessive runout or wobble.

Ensure the rotor is properly seated against the brake bell and that all mounting bolts are torqued to specification. Check for debris between the rotor and bell. If runout persists, the rotor may be warped and require replacement.

Increased braking noise (squealing or grinding).

This can be caused by worn brake pads, improper pad bedding, or debris. Inspect brake pads for wear and replace if necessary. Ensure pads are correctly bedded to the rotor surface. Clean rotors and check for foreign objects.

Reduced braking effectiveness or fade under heavy use.

Ensure brake pads are suitable for high-temperature applications and are correctly bedded. Verify that the cooling system for the brakes is unobstructed. Check for any fluid leaks in the brake lines. The rotor may be nearing the end of its service life or the application may exceed its thermal capacity.

Uneven pad material transfer on rotor surface.

This can occur during the bedding process or if the brake system is not operating optimally. Ensure proper pad bedding procedure is followed. Check for consistent clamping force from the calipers.

Pros and Cons

Pros

  • Excellent heat dissipation due to curved vane design.
  • Durable and resistant to warping thanks to premium carbon iron.
  • Reduces rotating and unsprung weight for improved vehicle performance.
  • Provides reliable stopping power for demanding applications.
  • Offers high-quality performance at a competitive price.

Cons

  • Requires a separate bell for mounting.
  • May be overkill for standard daily driving needs.
  • Specific PCD (Pitch Circle Diameter) options must be carefully matched.
  • Handed design (LH/RH) requires correct selection for proper fitment.

Setup, Compatibility & Care

Setup: These rotors are designed to be mounted using a separate brake bell. Ensure that the bell you select is compatible with both the rotor's mounting pattern and your brake caliper bracket. Proper torque specifications for all mounting hardware must be followed.

Compatibility: The Wilwood UL32 rotors are available in various sizes and PCDs. It is crucial to verify that the rotor's diameter, thickness, and bolt circle diameter (PCD) precisely match the requirements of your vehicle's braking system and the intended hub or bell. This specific model (MPN 160-2899) is a LH (Left Hand) rotor measuring 11.75x1.25 inches with an 8x7 inch PCD. Always confirm compatibility with your specific brake system before purchase.

Care: To maintain optimal performance and longevity, regular cleaning is recommended. After driving, allow the brakes to cool completely before cleaning. Use a mild brake cleaner and a soft brush to remove dust and debris from the rotor surfaces and vanes. Avoid harsh chemicals. Inspect rotors for any signs of excessive wear, cracks, or warping during routine maintenance. Ensure that pad material is not excessively built up on the rotor surface.

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