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StopTech 81.059.9931L Brake Rotors - AeroRotors

Manufacturer

StopTech

Part Number

81.059.9931L
04/24/2034 1:19 AM
Sale Price

$329.11

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Product Details

StopTech 81.059.9931L Brake Rotors - AeroRotors

AeroRotors

StopTech AeroRotors are patented 2-piece hat and rotor assemblies designed to replace original factory rotors while working with the factory brake calipers. Each StopTech AeroRotor Kit contains a pair of AeroRotors to fit the front or rear axle of your vehicle. Although the AeroRotors are a direct replacement for factory rotors, StopTech AeroRotors offer significantly improved cooling and overall braking performance thanks to several design enhancements and patented innovations.

The 2-piece directional, floating AeroRotors are specifically designed to allow independent expansion of the rotor and hat without coning thanks to elongated drive pin holes. Available in MAX-float for racing, or controlled float for quiet street use, AeroRotor components include an AeroRotor friction ring with a patented AeroVane design and pre-assembled directional billet aluminium AeroHat with carefully engineered directional stand-offs to optimize cooling airflow. The panted AeroVane design pushes up to 61% more air for better cooling and reduced fade on the track.

By using lightweight aircraft-grade aluminum for the hats, the 2-piece AeroRotors are up to 8 pounds lighter than stock rotors. The lighter rotational weight allows for faster acceleration and deceleration, and nimbler handling.

StopTech AeroRotors are available in slotted or cross-drilled finish. Slots and holes allow better dissipation of heat, friction material and debris assuring fresh pad material is in contact with the rotor face every time.

An optional anti-corrosion gold zinc coating benefits customers who live in cold climates, where snow and road salt are commonly encountered. Zinc coating also benefits customers who prefer no visible surface rust on the vanes and outer circumference of rotors.
StopTech AeroRotors are 100% made in the USA, with both casting and machining taking place in California.

StopTech AeroRotor Rings
The patented 2-piece AeroRotor assembly uses uniquely designed and patented AeroVanes inside the disc to optimize airflow through the rotor. This improved directional design minimizes turbulence and flows up to 61 percent more air than any other rotor tested. The result is up to 80 percent better airflow over original equipment rotors and 10-30 percent better airflow than other directional vane racing rotors currently available. Better airflow equals better cooling, and better cooling means less fade and better overall brake system performance.

StopTech AeroRotors also feature a proprietary alloy chemistry. By adding molybdenum to the gray iron, carefully targeting a narrow range of hardness and tensile strength values, and controlling the cooling rate of the rotor after casting, StopTech produces a friction ring with added crack resistance as well as improved functionality.

Drive Pins
In certain applications where packaging is an issue such as on the Chevrolet Corvette StopTech uses slant-head drive pins to provide improved clearance as pads wear.

Zinc Plating
Zinc Plating, available on StopTech AeroRotors, prevents corrosion. This is particularly useful in winter climates where road salt and other environmental factors may increase the likelihood of oxidation.

Products specifications

Position

Front-Left

Rotor

Slotted

Weight

15.83lbs

This is my second time ordering from Autoplicity and both times they had the lowest price on the items I was looking for (brake pads and CAI filter). Fast shipping, my filter was at my door two days later. Overall very satified.

Site was user friendly. Shipping was quick. The pricing was the best I could find

Great price on a great product! The Thule Raceway 9002 3-bike trunk-mounted rack is what I purchased. Shipping was fairly quick and the product was new, in original packaging and was a great deal compared with other sites for the same product! Would order again!

Only place that had this item in stock.

first time buyer. will use again and refer to others

I loved how easy it was to find the product and the price was amazing, half the price of other sites. It was so easy to checkout, I will definitely come here again.

fast and simple order

So far its good.

First time I've tried these guys. Had trouble getting this product from my normal source (backordered) but Autoplicity shipped quickly and had a better price too! You know I will be back! Thanks!

Easy to use website

Easy to order

Fast shipping! would buy from again for sure! Great product at the best price that I could find!

good so far

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