CALIPERS StopTech's ST-40 and ST-60 calipers are fully forged for optimal strength and light weight. All caliper finish machining (such as piston bores sized correctly for the application) and assembly/testing is done in our Southern California facility. StopTech tests every single finished caliper to 2800 psi using brake fluid on a special test bench designed by StopTech engineers.       ST-40 & ST-45 - 4 PISTON CALIPER FOR FRONT & REAR (4 piston kits with 380mm rotors use ST-45 calipers) Fully forged aluminum construction ALL finished parts are 100% leak down and pressure tested to 2500 PSI ST-40 uses standard FMSI D372 pad (VIEW PAD SHAPE) ST-45 uses standard FMSI D609 pad (VIEW PAD SHAPE) Any combination of 8 piston sizes available to match kit to vehicle application Differential piston sizes minimize pad taper Dust boots are standard Weight: 7.94 lb (3.6 kg) unloaded Same caliper used by top Speed® World Challenge and Grand-Am Cup Teams

ST-60 - 6 PISTON CALIPER FOR FRONT Fully forged aluminum construction Patented, bolt-in bridge minimizes caliper compliance for a firmer pedal Stiffest 6 Piston caliper currently on the market Uses standard FMSI D1247 pad (VIEW PAD SHAPE) Can be used on rotors with outer diameter of 328-380mm and thickness of 28-35mm ALL finished parts are 100% leak down and pressure tested to 2500 PSI Uses a popular pad shape readily available in over 15 street performance and race friction compounds Over 19 different piston size combinations available to tune brake torque to the needs of each individual application Differential piston sizes minimize pad taper for longer pad life and a firmer pedal Dust boots are standard for reduced maintenance  ST-22 - 2 PISTON CALIPER FOR REAR KITS Fully forged aluminum construction All finished parts are 100% tested to a pressure of 2500 PSI Uses standard FMSI D961 Pad (VIEW PAD SHAPE) 2 piston opposed design May be added to cars with existing front StopTech kits Piston size adjusted for the application, just like our front calipers Dust boots are standard Weight: 4.4 lb (2 kg) unloaded  ST-10 - 1 PISTON CALIPER PARKING BRAKE FOR REAR KITS Made of billet aluminum Different levers to fit your stock parking brake cable Fits any rotor 28 through 32mm wide Single piston slider design Uses standard FMSI D377 Pad (VIEW PAD SHAPE) Weight: 4.13 lb (1.9 kg) unloaded

CALIPER COLOR OPTIONS Calipers are available in the following colors: Red Black Silver Blue Gold Yellow Blue, gold and yellow calipers have a 30-45 day lead time and are $200 extra per axle. Silver calipers are available at no extra charge, but do have a 30-45 day lead time.   AEROROTOR® The patented AeroRotor® features curved vanes with innovations on leading and trailing edges. The uniquely designed vanes inside the disc optimize airflow through the rotor. This improved directional design minimizes turbulence and flows more air than any rotor tested. The result is up to 80% better airflow over original equipment rotors and 10-30% better airflow than directional vaned racing rotors currently available. AEROHAT™ Outer rotor faces run hotter. The patent pending AeroHat™ has directional stand offs between the rotor and mounting bell (hat) that increase airflow to the outside faces of the rotor by 50-100%. Increased airflow reduces the temperature difference between the inside and outside faces of the rotor resulting in less distortion and better performance compared to other fully floating designs. Outer pad wear is reduced. AeroHat™ improves entire brake system airflow by up to 4%. The below chart shows that StopTech (top red line) has the highest induced airflow of any rotor tested. Leading aftermarket and original equipment rotors were tested for airflow from 30mph to 150mph. AeroRotor® dramatically outperformed all other rotors, with improvements from an impressive 11% to a staggering 80% increase in airflow (corrected to 20°C and sea level.) BETTER AIRFLOW MEANS BETTER COOLING AND LESS FADE ROTOR PATTERNS Rotors are available slotted, drilled or plain. Drilled rotors are $100 extra per axle. Slotted Drilled Plain StopTech now offers an anti-corrosion gold zinc coating for all AeroRotors. The coating benefits customers who live in cold climates where snow and road salt are commonly encountered, and customers who would prefer to not have visible surface rust on the vanes and outer circumference of their rotors. Zinc coating does not have a negative environmental impact like other coatings. Gold zinc coating costs $70 per axle extra. Slotted with Zinc Coating Drilled with Zinc Coating HATS AND BRACKETS StopTech's hats and brackets are made with a special type of billet aluminum that was designed for the AeroSpace industry in the United States. The German TÜV were so impressed with the durability of these parts during testing that they replicated the bracket and repeated the test with a steel imitation of our part. The steel version failed early. Hats and brackets are machined to ISO standards at StopTech's manufacturing facility in Torrance, California, using the latest CNC machines that feature active tooling.   STREET PERFORMANCE PADS The performance pads included with kits are suitable for both street and light track use such as Autocross (1 lap at a time). For more aggressive track use or race use, it is very important to select pads appropriate to the type of driving. The manufacturers below all make pads to fit StopTech calipers. Please see the compound descriptions in the “High Performance Pad” section of this web site to help you select appropriate street, track day or race pads. Other Options High performance brake fluid - Higher boiling point than stock fluid Rear slotted or drilled rotors for front kits - Add bite and match the aesthetics of the front kit Rear stainless steel lines for front kits - Provide quicker pedal response and better feel Rear performance pads for front kits - Increase maximum operating temperature compared to stock STOPTECH  STEEL BRAKE LINES StopTech makes our own stainless steel brake lines in Southern California. StopTech is a DOT (U.S. Department of Transportation) registered supplier of Stainless Steel Brake Lines. Line material and fittings are all made from the highest quality parts available. Lines feature a clear abrasion-resistant cover for maximum protection against chaffing. Necessary quality control procedures are in place to ensure lines are the correct length, etc. Every fully assembled StopTech Stainless Steel Brake Line is tested to a pressure of 4,500 PSI.   WHEEL FITMENT Most cars require upgraded wheels to fit over a big brake kit, but some kits do fit in stock wheels. When a kit fits stock wheels, this is noted in the kit description. To view this description, click on the part number for the particular kit of interest after searching on make, year and model in our online ordering system. General guidelines for wheel fitment are below, but more important than the diameter of the wheel is the space between the face of the caliper and the inside of the wheel spokes. Wheel width and offset have nothing to do with this clearance area. Clearance is strictly a function of the spoke design. Even is the diameter of your wheel is sufficient, we still recommend that you check fitment. Easy-to-use templates and instructions on how to use them are under Technical Information/ Wheel Fitment on this web site. These templates will allow you to accurately test fit any wheel. Be sure you check wheel fitment before committing to a wheel set.   Kits usually require these minimum wheel diameters: 328mm rotor (12.9 inches) - 17 inch wheel 332mm rotor (13 inches) - 17 inch wheel 355mm rotor (14 inches) - 18 inch wheel 380mm rotor (15 inches) - 19 inch wheel   Please use the link below to check your wheel fitment. Front Wheel Template:  http://www.stoptech.com/tech_info/charts/98-143-24C0-00.pdf

*SPECIAL ORDER - Ships within 2-3 Weeks - The time allotted is due to the production by the manufacturer. Although the time stated is within 2-3 weeks, we will of course try to ship it to you earlier.  In addition, we will email you with the exact time window once the order is place and will keep you updated with the progress.    TRACKING NUMBER is sent to your email once items are shipped (not including weekends & holidays).   DOMESTIC: FREE SHIPPING to 48 States only UPS Ground/USPS Priority Mail: shipment takes 1-5 business days to receive package. Excludes: Alaska, Hawaii, & APO, please use shipping calculator below   INTERNATIONAL:     Shipping charges does not include Taxes / Duties. UPS/ USPS may ask to collect Taxes / Duties upon delivery of package. For an estimate of Taxes / Duties fees, please contact your local UPS/USPS office or local government. R1 Concepts will not be responsible for any of Taxes / Duties fees.

ALASKA & HAWAII: USPS Priority Mail (3-7 business days) APO: USPS Priority Mail (2-4 weeks) INT'L: UPS Int'l (3-5 business days) PUERTO RICO USPS Priority Mail (3-7 business days) CANADA: UPS Ground (3-6 business days)$10.00 Brokerage Fee DOMESTIC (48 States) UPS Ground/USPS (1-5 business days) We will not mark any items as gift or sample.

With today's technology in computer-aided design, manufacturing methods, and quality control, R1 Concepts stays connected with new technological concepts to improve our automotive product's performance and quality. R1 Concepts stays up to date with its manufacturer's technologies and handpicks its product lines to ensure you are receiving the best in new automotive braking technology. Visit our EBay Store for more performance brake rotors, pads, calibers, drums, brake shoes, stainless steel brake lines, etc.

R1 Concepts constantly strives to improve customer service and well as product quality. In addition, our customer support, high positive feedback, and quality products have been recognized through various awards. All of our rotors are machined and inspected in the U.S. R1 Concepts... "STOPPING THE WORLD!"

PHONE Tel: 714-777-2323 Fax: 714.870.6163 Toll-Free: 888-R1CONCEPTS 888-712-6623

ADDRESS R1 Concepts Inc. 520 E. Jamie Ave. La Habra, CA 90631

Return Policy:

Items must be returned within: 30 days

Refund will be given as: Money back (same way buyer paid for the item)

Return shipping paid by: Buyer

We offer 30 days return policy starting the day the buyer receives the item. Items being returned must be in brand new condition as it originally came with the original boxes, hardware, manuals, accessories, and etc to receive refund. All shipping expenses including duty and/or customs fees will be paid by the buyer and there will be a 15% restocking fee for returns. We will pay for the shipping and not charge you the 15% stocking fee if we shipped out the wrong item. 

Warranty Policy:

Warranty Duration: 90 days

Warranty Type: Replacement Warranty for manufacture defects only