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Sparta Evolution - GP1 Front (SR145.1B21)

Disc Brake Rotor



Ships Directly from Manufacturer
Select your vehicle to confirm fitment:

This part fits

  1. 2008 BMW Z4 Roadster 3.0si
  2. 2008 BMW Z4 Roadster 3.0i
  3. 2008 BMW Z4 3.0si
  4. 2008 BMW Z4 Coupe 3.0si
  5. 2007 BMW Z4 Roadster 3.0i
  6. 2007 BMW Z4 3.0si
  7. 2007 BMW Z4 Roadster 3.0si
  8. 2007 BMW Z4 Coupe 3.0si
  9. 2006 BMW Z4 3.0i
  10. 2006 BMW Z4 Coupe 3.0si
  11. 2006 BMW 330i Base
  12. 2006 BMW 330Ci Base
  13. 2006 BMW Z4 Roadster 3.0si
  14. 2006 BMW Z4 Roadster 3.0i
  15. 2006 BMW 330xi Base
  16. 2005 BMW 330i Base
  17. 2005 BMW 330Ci M
  18. 2005 BMW Z4 3.0i
  19. 2005 BMW 330xi Base
  20. 2005 BMW 330i M
  21. 2005 BMW 330Ci Base
  22. 2004 BMW Z4 3.0i
  23. 2004 BMW 330xi Base
  24. 2004 BMW 330i Base
  25. 2004 BMW 330Ci Base
  26. 2003 BMW 330i Base
  27. 2003 BMW 330xi Base
  28. 2003 BMW Z4 3.0i
  29. 2003 BMW 330Ci Base
  30. 2002 BMW 330xi Base
  31. 2002 BMW 330i Base
  32. 2002 BMW 330Ci Base
  33. 2001 BMW 330Ci Base
  34. 2001 BMW 330xi Base
  35. 2001 BMW 330i Base
  36. show all...
Authorized Dealer

About this product

Part #: SR145.1B21

Sparta Evolution GP1 rotors are direct OEM replacement rotors that come standard with the Sparta Evolution signature S-groove pattern. Designed for longevity and smooth actuation the S-groove pattern features signature ?S? shaped slots uniformly sized and evenly distributed across the friction surface. GP1 Rotors are manufactured using high carbon cast iron to increase wear resistance and heat cycling capabilities. The GP1 rotors are high performance OEM replacements designed to outperform any other OEM replacement rotor on the market.

More Details

Add-On PartR622;P518
TitleBrake Rotors - Sparta Evolution GP1 OE replacement 1-piece brake rotor

See what our community says about sparta-evolution products

What made you choose this particular product?
Sparta is a new company with a great track record and lots of R&D/support
Is this your first time buying from this brand? Did you consider other brands?
Sparta is a new company with a great track record and lots of R&D/support
View on Michael's build
WARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

Benefits of adding this mod

How could you possibly enjoy all that tire shredding torque if you can’t stop? A good set of high performance pads, calipers, and rotors are arguably the most important upgrades you can make for a balanced, high performance build. Consistent performance across all operating conditions and reduced stopping distances result in significantly improved track times and a better daily-driver experience. Whatever your goal, we have all the brake parts you’ll need to build your dream ride (and make sure it stops).


we ship worldwide!

Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

+ always free shipping in the U.S.
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Smoking Tire / The Drive

Thank you for all the help, really. You guys are awesome. This is all great info and I really appreciate everything you have done to help me with my build.

James M.

Ford Focus ST

Your customer service is wonderful. Thank you for taking care of this. My review will express all. Thank you!

Wallace R

Chevrolet Silverado 1500