Stoptech 126.45068SL Disc Brake Rotor - Front Left

StopTech Sport Slotted Disc Brake Rotors Overview

The StopTech Sport Slotted Disc Brake Rotors (Part Number 126.45068SL) are engineered for Mazda 3 and Mazda 3 Sport models. These vented, slotted rotors provide consistent braking performance and enhanced heat dissipation for improved stopping power under demanding conditions.

• Compatible with Mazda 3 and Mazda 3 Sport
• Part Number: 126.45068SL
• Vented disc design for better cooling
• Slotted surface type to reduce brake fade and improve pad bite
• Coated hat finish for corrosion resistance
• Floating disc mounting for thermal expansion
• Overall diameter: 278 mm (10.945 inches)
• Nominal thickness: 24.9 mm (0.980 inches)
• Discard thickness: 23.0 mm (0.906 inches)
• 5 lug holes with 114.3 mm bolt circle diameter
• Weight approximately 7.95 kg (17.5 lbs)

Detailed Product Description

The StopTech Sport Slotted Disc Brake Rotors are designed specifically for Mazda 3 and Mazda 3 Sport vehicles, ensuring precise fitment and reliable braking performance. Featuring a vented rotor design with straight vanes, these rotors promote efficient heat dissipation to reduce the risk of brake fade during extended use. The slotted surface enhances pad bite and helps evacuate gases and debris from the braking surface, maintaining consistent stopping power.

The rotor's hat is coated to resist corrosion, extending the rotor's service life. The floating disc mounting allows for thermal expansion and contraction, reducing the risk of warping under high temperatures. With an outside diameter of 278 mm and a nominal thickness of 24.9 mm, these rotors meet OEM specifications for the Mazda 3 lineup. The 5-lug hole pattern with a 114.3 mm bolt circle diameter ensures secure mounting.

StopTech Sport Slotted Disc Brake Rotors Product Line

The StopTech Sport Slotted Disc Brake Rotors line focuses on performance-oriented rotors that balance everyday drivability with enhanced braking capabilities. This product line incorporates slotted surfaces and vented designs to improve heat management and braking consistency, making them suitable for spirited driving and light track use. The 126.45068SL rotor is part of this line, offering Mazda 3 owners a reliable upgrade that maintains OEM fitment and quality standards.

Applications and Problem Solving

• Reduces brake fade during aggressive or extended braking
• Improves brake pad bite and responsiveness
• Helps prevent rotor warping caused by heat buildup
• Minimizes corrosion on the rotor hat for longer service life
• Maintains consistent braking performance under varied driving conditions

Installation Notes and Tips

• Ensure compatibility with Mazda 3 or Mazda 3 Sport models before installation
• Check rotor thickness and discard limits to confirm replacement timing
• Use proper torque specifications for the 5-lug mounting pattern (114.3 mm bolt circle)
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors and pads

Quality Assurance and Warranty

StopTech Sport Slotted Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided, StopTech products typically come with a limited warranty against defects in materials and workmanship. Refer to StopTech or authorized distributors for exact warranty terms.