Wheelwell members take 5% off: FAST19 at checkout.

Sparta Evolution - GP1 Rear (SR134.1B21)

Disc Brake Rotor



Ships Directly from Manufacturer
Select your vehicle to confirm fitment:

This part fits

  1. 2012 BMW 335is Base
  2. 2012 BMW 335i Sport
  3. 2012 BMW 335i Modern
  4. 2012 BMW 335i M Sport
  5. 2012 BMW 335i Luxury
  6. 2012 BMW 335i Exclusive
  7. 2012 BMW 335i Base
  8. 2012 BMW 335i xDrive Base
  9. 2011 BMW 335d Base
  10. 2011 BMW 335is Base
  11. 2011 BMW 335i xDrive Base
  12. 2011 BMW 335i Base
  13. 2010 BMW 335i M Sport
  14. 2010 BMW 335d Base
  15. 2010 BMW 335i xDrive Base
  16. 2010 BMW 335i Base
  17. 2009 BMW 335i xDrive Base
  18. 2009 BMW 335i M Sport
  19. 2009 BMW 335i Base
  20. 2009 BMW 335d Base
  21. 2008 BMW 335i Base
  22. 2008 BMW 335i M Sport
  23. 2007 BMW 335i Base
  24. show all...
Authorized Dealer

About this product

Part #: SR134.1B21

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.
Have a question? Ask an Expert!

Finding the best parts can be tricky

- but not to worry! Our team of experienced American Muscle, JDM, Euro, and off-road tuners are ready to answer your questions (as long as we’re not in the garage wrenching on our own builds).

chat-iconLive Chat
Ask our expert tuners anything!
call_iconCall Us
1 (800) 959-4304

Wheelwell wants to be the new online hub for car parts and accessories.

Wheelwell helps you organize all your stuff for your car, I’ve loaded all my cars on Wheelwell and you can see all the parts I’ve put in them and that may help you make a decision with your own build.

Matt Farah

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