Street Series 4 Pot Big Brake Kit (SR-21 Brake Pads)

By combining the expertise of EBC Brake & obp, we have developed a range or Universal/Custom-Fit brake kits.

These kits are NOT car specific.

Kit Contents:
SS-4-K9: SS 4 Pot Caliper (Pair), SR-21 Brake Pads & 330x28mm D51 Brake Rotors
SS-4-K10: SS 4 Pot Caliper (Pair), SR-21 Brake Pads & 330x28mm D64 Brake Rotors
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BRAKE CALIPER INFORMATION
The obp light weight high performance OBP-SS-4 Street Series 4 Pot Calipers which have been developed with 6068-T6 aluminium alloy using advanced split forging technology. Each caliper is finished with a sleek black high-temperature brake paint for durability and a premium appearance.

Brake Caliper Specification:

Produced by Forging & CNC Machining
Aluminium Pistons
49.56cm2 Piston Area (38×41.2mm)
6.2kg Weight for a pair
292×80.4x132mm Parameter
Suits 17 & 18″ Rims
Suits 330-355 x 28mm Brake Discs
M10x1 Port

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BRAKE ROTOR INFORMATION
EBC’s 2-piece replacement discs have been tested to withstand hundreds of hours the harshest track driving. All cast iron rings feature 48 curved vanes and are handed left and right, ensuring the vanes always rotate in the correct direction, giving maximum cooling efficiency. All outer friction rings are cast from a high-copper, high-carbon G3500 disc alloy giving them a high resistance to wear and cracking, even when used on track or for racing. The cast iron outer ring ‘floats’ on EBC’s patented SD-Drive technology bobbins, allowing the friction ring to expand and contract freely by up to 3mm when subjected to the extreme heat generated from hard braking. All bobbins are machined from a single piece of stainless steel, preventing unsightly corrosion and ensuring the outer ring continues to float freely, even after years of exposure to road elements. Each bobbin location also features an anti-rattle spring clip, meaning these discs are totally silent in operation.

Brake Rotor Specification: 

Outside Diameter: 330mm Ø
Disc Thickness: 28mm
Disc Construction: 2-Peice floating
Disc Vane Type: Curved Vane
Material: Cast Iron
Bell PCD: 330×28 D51 203mm x 8
Bell PCD: 330×28 D64 185mm x 8

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BRAKE PAD INFORMATION

SR21

BC Sintered SR pads are in a class of their own.

Made in the USA plant of EBC Brakes, SR bites harder and lasts longer than anything without damaging rotors. There have been a few sintered pads around in the past but never like these.

With the transfer film technology employed in creating this compound, disc wear is almost totally eliminated. Being a “hard “pad in compressibility terms means pedal feel will also be better and more responsive.

Wear life is huge and tests have shown 3-5 times longer life than competitor semi-metallic pads.

The SR21™ ultra-high friction compound is targeted for the front and rear of race cars with bias controls only. SR is therefore only made for full race calipers from such as AP, Brembo, Alcon, and Wilwood and will launch in spring 2022.

The biggest advantage of SR is twofold….more bite, less fade, and the LOWEST cost per racing mile of any pad.

Another huge positive is the almost instant brake obtained from SR after merely matching the pads to the rotors the brakes are right there from the cold up to 925°C (Ambient – 1697°F)

There is NO CHEMICAL BEDDING on SR, you just fit them and race since there are no volatiles to burn off, another first in race brake technology

Dozens of Top teams have run SR in 2021 and every single one has requested supplies for the 2022 racing season.