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Stoptech 126.51021CSR - Disc Brake Rotor


Part No: 126.51021CSR
  • $106.59
MSRP: $125.40
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Disc Brake Rotor
Actual Product may vary from pictures due to Vehicle Fitment. Make/Model specific photos not shown.
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Stopping Power

Stoptech 126.51021CSR - Disc Brake Rotor


Part No: 126.51021CSR
  • $106.59
MSRP: $125.40
Cryo-Treated Slotted rotors by StopTech are by far the smartest brake disc choice if you're racing, towing, hauling, fleet driving or running over-sized wheels and tires that are taller or heavier than stock. All those conditions create massive heat and this is THE highest quality brake rotor choice you have without having to move up to a 2-piece brake rotor solution. This is it, this is the top and provides the quickest stop. The slotted rotor provides the best brake pad bite and stopping power of any other rotor design. Allow10 days for cryo treatment time, it's worth it. Sold each.
Vehicle Specific

Product details


Cryo treated rotors by StopTech are often cited as the best way to double and occasionally triple the service life of a brake rotor and add to the metal's durability. That can be important and provide value only if labor costs to change rotors exceeds the typical $30-$35 cost per rotor to cryo treat them plus the rotor itself. For some, they want the longest-life rotor possible to reduce trips to the repair shop. These Cryo-treated StopTech High-Carbon 126 Cryo treated rotors are best, most durable, fastest stopping, one-piece stopping rotors there are.

STOPTECH CRYO TREATED BRAKE SLOTTED ROTORS A Technology from Endurance Racing to Add Rotor Longevity Cryogenic Treatment Reduces Residual Stress, Adds Longevity Ideal for Truck and Tow Vehicles, Pursuit and Fleet Vehicles Increased Initial bite and Wet Weather Response Double Disk Ground For Consistent Friction Surface Superior Resistance To Cracks From Thermal Stress Black E-Coated Non-Friction - Corrosion Protection Slotted and/or Drilled Versions Helps Evacuate Gasses/Dust/Heat Direct OE Replacement Sizing For Perfect Bolt-on Fit Directional Curve Vane Designs On Selected Apps Cryo Treatment Can Be Performed on Any StopTech or Centric Rotor Cryo Treatment Generally Cost About $30-$40 More Per Rotor Please allow 7-10 business for Cryo Treatment before shipping


  • Part Number
  • Height
    2. in
  • Width
    12. in
  • Length
    12. in
  • Weight
    9.83 lbs
  • California Proposition 65
    WARNING: Cancer and Reproductive Harm
  • Title
    StopTech Sport Slotted Cryo Brake Rotor; Rear Right

Manufacturer Info

BuyBrakes.com is the preferred and registered selling master distributor for StopTech Big Brake Kits, Sport Brake Kits and Axle Pack Brake Kits. We also sell and support sales of StopTech’s line of Slotted Rotors, Drilled and Slotted Rotors, Drilled Rotors and the famous and durable StopTech Cryo Rotors. StopTech Big Brakes Kit Replacement Parts such as Hats/Bells Housing,, Brackets, Rebuild Kits, Lines, BBK Replacement Brake Pads, Racing Brake Pads and of course replacement StopTech Rotor Rings and Brake Line Hoses. We service dealerships, shops and of course end users. Being StopTech Brake experts, likely the easiest place to buy StopTech brake kits and all of the StopTech Big Brake Kit replacement parts. For StopTech Replacement Rotors, Rotor Rings and StopTech Pads for StopTech Big Brakes Kits Factory Installed such as Rousch and Saleen built Ford Mustangs, Toyota TRD equipped Vehicles, Callaway Corvettes and others, Chevrolet Camaros, Nissan 370Z and all Brembo factory equipped U.S. and European vehicles- Call Us at 888-257-7149!

Stoptech Performance Brakes

If you need help choosing the right Stoptech Brakes to fit your driving style then please don't hesitate to give us a call. We have professional brake technicians standing by ready to answer any questions you may have! 888-257-7149 BuyBrakes.com's selection of StopTech Brake Kits include pre-matched Brake Pads and Rotors as packaged kits are one of the most cost effective upgrades you can perform on your vehicle. Wondering which brake kit is best for your application or for simple daily driving? We can keep it cheap or upgrade you to a Stage 1, 2 or 3 Kit without breaking your budget. Call us, let's talk budget, brake brands, vehicle specifics and driving environment. Stoptech High Performance Brake Systems was founded in 1999 with one mission, to become a leading manufacturer and supplier of high performance brake components. Stoptech is Centric's High Performance Division and has become one of the top innovators of the brake world. Being the first brake manufacturer to offer balanced brake upgrades for production cars that are engineered to improve overall braking performance while remaining compatible with stock rear brakes. Stoptech uses industry leading technology and materials when manufacturing their brake components from their quality rotors used in their Stoptech Brake Kits to their performance 309 Brake Pads. Stoptech offers everything you would need for your brakes like Pads, Rotors, Stainless Brake Lines and even Brake Fluid.

Compatible with the following vehicles

  • Hyundai Azera Base 2009 - 2017
  • Hyundai Azera GLS 2009 - 2011
  • Hyundai Azera Limited 2009 - 2017
  • Hyundai Sonata 2.0T 2011 - 2012
  • Hyundai Sonata 2.0T Limited 2011 - 2012
  • Hyundai Sonata 2.0T Sport 2018
  • Hyundai Sonata 2.0T Ultimate 2019
  • Hyundai Sonata 2.4 Sport 2018
  • Hyundai Sonata Eco 2015 - 2019
  • Hyundai Sonata Essential 2019
  • Hyundai Sonata GL 2005 - 2018
  • Hyundai Sonata GLS 2005 - 2018
  • Hyundai Sonata GLX 2005
  • Hyundai Sonata Hybrid 2011 - 2017
  • Hyundai Sonata Hybrid GL 2018
  • Hyundai Sonata Hybrid GLS 2018
  • Hyundai Sonata Hybrid Limited 2013 - 2019
  • Hyundai Sonata Hybrid Luxury 2019
  • Hyundai Sonata Hybrid Preferred 2019
  • Hyundai Sonata Hybrid Premium 2012
  • Hyundai Sonata Hybrid SE 2017 - 2019
  • Hyundai Sonata Hybrid Ultimate 2017 - 2019
  • Hyundai Sonata Limited 2007 - 2019
  • Hyundai Sonata Limited 2.0T 2015 - 2019
  • Hyundai Sonata Luxury 2019
  • Hyundai Sonata LX 2005 - 2006
  • Hyundai Sonata Plug-In Hybrid 2016 - 2019
  • Hyundai Sonata Plug-In Hybrid Limited 2016 - 2019
  • Hyundai Sonata Plug-In Hybrid Ultimate 2016 - 2019
  • Hyundai Sonata Preferred 2019
  • Hyundai Sonata Premium 2015 - 2018
  • Hyundai Sonata SE 2007 - 2019
  • Hyundai Sonata SEL 2018 - 2019
  • Hyundai Sonata Sport 2015 - 2019
  • Hyundai Sonata Sport 2.0T 2015 - 2018
  • Hyundai Sonata Sport Tech 2016 - 2017
  • Hyundai Sonata Ultimate 2.0T 2015 - 2017
  • Hyundai Sonata VE 2005
  • Hyundai Tucson Fuel Cell 2016 - 2017
  • Kia Cadenza Base 2014 - 2016
  • Kia Cadenza Limited 2014 - 2016
  • Kia Cadenza Premium 2014 - 2016
  • Kia Optima EX 2011 - 2018
  • Kia Optima EX Luxury 2013 - 2015
  • Kia Optima Hybrid 2011 - 2013
  • Kia Optima Hybrid EX 2013 - 2018
  • Kia Optima Hybrid EX Premium 2014 - 2018
  • Kia Optima Hybrid LX 2013 - 2018
  • Kia Optima Hybrid Premium 2013 - 2018
  • Kia Optima Limited 2014 - 2015
  • Kia Optima LX 2011 - 2018
  • Kia Optima LX 1.6T 2016 - 2018
  • Kia Optima Plug-In Hybrid EX 2017 - 2018
  • Kia Optima S 2018
  • Kia Optima SX 2011 - 2018
  • Kia Optima SX Limited 2016 - 2017
  • Kia Optima SX Turbo 2014 - 2015
  • Kia Optima SXL 2013 - 2018
  • Kia Optima SXL Turbo 2014 - 2015
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