Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith

U.S. Brake Straight Vane Rotor, 12.19 x 1.25 Inch


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Please NOTE the following about this product:

  • This product is discontinued.



Q & A

What's in the Box

U.S. Brake's disc brake rotors set the pace for design, quality and performance. Special designed materials, enhanced computer imagery and design, as well as extensive lab and track testing have yielded a superior brake rotor. All U.S. Brake rotors have been optimized for strength, weight, and heat dissipation ability to meet the demands of the serious racer.

  • Premium grade alloys for superb thermal shock stability
  • Machined and blanchard ground to assure precise flatness
  • Precise vane placement for high volume cooling

Instructions (PDF)

Item Details

8 on 7" Thru
10.9 lbs.

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AFCO 6640103 Pillar Vane Flat Rotor, 1.25 Inch, 12.19 Inch Diameter
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  • Designed using premium grade alloys for superb thermal shock stability
  • Machined and double disc ground to assure precise flatness
  • Precise pillar placement for high volume cooling
  • Premium center - split castings reduce stress risers
  • Rotationally machined balanced - CNC
  • More brake pad surface support (pillars) to prevent rotor cupping
  • Strength of an 80 vane rotor with the weight savings of a 32 vane rotor
  • Machine balanced to reduce vibration
  • Increased cooling capacity
  • Proven by top racers to improve the brake system
  • 1.25" thick
  • 7" bolt circle
  • 12.19" diameter
  • Weighs 10.9 lbs
  • IMCA approved