Wilwood GT48-LW SPC-37-LH 2-Piece Brake Rotor - 11.75" x 1.21"

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SKU: WIL160-13500
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Sale price$138.99 Regular price$164.64
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wilwood

Wilwood Engineering has been the American leader in aftermarket racing brakes since 1977. Forged aluminum calipers, two-piece slotted rotors, and master cylinders engineered for NASCAR, IndyCar, sprint cars, and street-legal big brake kits.

Wilwood GT48-LW Curved Vane Spec-37 Rotor

Elevate your vehicle's braking system with the Wilwood GT48-LW Curved Vane Spec-37 Rotor. This high-performance 2-piece rotor, measuring 11.75 inches in diameter and 1.21 inches thick, is engineered for demanding driving conditions, including short tracks and road course racing. It's designed to fit specific hub and wheel combinations (8 on 7.00in) and features a Left-Hand (LH) orientation.

Engineered for Extreme Performance:

  • Proprietary Spec-37 Alloy: Manufactured from a unique iron alloy that offers exceptional resistance to high temperatures, preventing distortion, warping, cracking, and premature wear. This material is derived from technology used in extreme-duty military spec rotors.
  • GT Series Asymmetrical Slotting: The proven GT Series asymmetrical face slot pattern enhances braking performance by effectively venting gases and heat, ensuring consistent stopping power.
  • Curved Vane Design: The internal curved vane structure promotes superior airflow, significantly increasing cooling capacity to maintain optimal rotor temperature during intense use.
  • Dynamic Balancing: Each rotor is individually dynamically balanced to eliminate vibrations, providing a smooth and comfortable driving experience even at high speeds.
  • Durability & Longevity: Designed for the longest service life in extreme braking scenarios, making it ideal for competitive racing and performance driving.

The Wilwood GT48-LW rotor combines cutting-edge material science with advanced design features to deliver unmatched braking performance. Its ability to withstand extreme heat and resist wear ensures reliability and consistency when you need it most. Whether you're competing on the track or pushing your vehicle's limits on the road, this rotor provides the confidence and control that comes with a top-tier braking system. Upgrade to Wilwood's advanced rotor technology available at GGCRACING for peak performance.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wilwood

Wilwood Engineering has been the American leader in aftermarket racing brakes since 1977. Forged aluminum calipers, two-piece slotted rotors, and master cylinders engineered for NASCAR, IndyCar, sprint cars, and street-legal big brake kits.

Wilwood GT48-LW Curved Vane Spec-37 Rotor

Elevate your vehicle's braking system with the Wilwood GT48-LW Curved Vane Spec-37 Rotor. This high-performance 2-piece rotor, measuring 11.75 inches in diameter and 1.21 inches thick, is engineered for demanding driving conditions, including short tracks and road course racing. It's designed to fit specific hub and wheel combinations (8 on 7.00in) and features a Left-Hand (LH) orientation.

Engineered for Extreme Performance:

  • Proprietary Spec-37 Alloy: Manufactured from a unique iron alloy that offers exceptional resistance to high temperatures, preventing distortion, warping, cracking, and premature wear. This material is derived from technology used in extreme-duty military spec rotors.
  • GT Series Asymmetrical Slotting: The proven GT Series asymmetrical face slot pattern enhances braking performance by effectively venting gases and heat, ensuring consistent stopping power.
  • Curved Vane Design: The internal curved vane structure promotes superior airflow, significantly increasing cooling capacity to maintain optimal rotor temperature during intense use.
  • Dynamic Balancing: Each rotor is individually dynamically balanced to eliminate vibrations, providing a smooth and comfortable driving experience even at high speeds.
  • Durability & Longevity: Designed for the longest service life in extreme braking scenarios, making it ideal for competitive racing and performance driving.

The Wilwood GT48-LW rotor combines cutting-edge material science with advanced design features to deliver unmatched braking performance. Its ability to withstand extreme heat and resist wear ensures reliability and consistency when you need it most. Whether you're competing on the track or pushing your vehicle's limits on the road, this rotor provides the confidence and control that comes with a top-tier braking system. Upgrade to Wilwood's advanced rotor technology available at GGCRACING for peak performance.

Product Details

Product Description

About Wilwood

Wilwood Engineering has been the American leader in aftermarket racing brakes since 1977. Forged aluminum calipers, two-piece slotted rotors, and master cylinders engineered for NASCAR, IndyCar, sprint cars, and street-legal big brake kits.

Wilwood GT48-LW Curved Vane Spec-37 Rotor

Elevate your vehicle's braking system with the Wilwood GT48-LW Curved Vane Spec-37 Rotor. This high-performance 2-piece rotor, measuring 11.75 inches in diameter and 1.21 inches thick, is engineered for demanding driving conditions, including short tracks and road course racing. It's designed to fit specific hub and wheel combinations (8 on 7.00in) and features a Left-Hand (LH) orientation.

Engineered for Extreme Performance:

  • Proprietary Spec-37 Alloy: Manufactured from a unique iron alloy that offers exceptional resistance to high temperatures, preventing distortion, warping, cracking, and premature wear. This material is derived from technology used in extreme-duty military spec rotors.
  • GT Series Asymmetrical Slotting: The proven GT Series asymmetrical face slot pattern enhances braking performance by effectively venting gases and heat, ensuring consistent stopping power.
  • Curved Vane Design: The internal curved vane structure promotes superior airflow, significantly increasing cooling capacity to maintain optimal rotor temperature during intense use.
  • Dynamic Balancing: Each rotor is individually dynamically balanced to eliminate vibrations, providing a smooth and comfortable driving experience even at high speeds.
  • Durability & Longevity: Designed for the longest service life in extreme braking scenarios, making it ideal for competitive racing and performance driving.

The Wilwood GT48-LW rotor combines cutting-edge material science with advanced design features to deliver unmatched braking performance. Its ability to withstand extreme heat and resist wear ensures reliability and consistency when you need it most. Whether you're competing on the track or pushing your vehicle's limits on the road, this rotor provides the confidence and control that comes with a top-tier braking system. Upgrade to Wilwood's advanced rotor technology available at GGCRACING for peak performance.

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