Information Details

Have issues and concerns?

Call our friendly and knowledgeable customer service department.
Customer Service Hours: Monday- Friday 6 am- 6.30 pm PST
Phone :
Tel : 714-777-2323
Fax : 562-623-0888
Toll-Free :
Or email us at : or


R1 Concepts, Inc.
13140 Midway PI.
Cerritos,CA 90703

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Sponsorship Inquiries :

Please include your proposal and images of your vehicle.

General Email :

Customer Support Email :


Support Hours

Mon - Fri : 6 am - 6:30 pm PST

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  • What conditions are these items in?
  • Is will call available?
  • Will these products require additional modifications or new brake calipers?
  • Will I get a tracking number?
  • What is your Warranty Policy?
  • What is your Return Policy?
  • Cross-Drilled Slotted Performance Brake Rotors
  • Why buy new brake rotors instead of turning them?
  • Which rotor is considered Left or Right side?
  • How to break in new brake rotors and pads
  • What is brake pad bed-in?
  • Is there a Dust-Free pad?
  • Solid or Vented? How can I tell the difference?
  • What is a Diamond Slot Rotor and why it is superior?