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Go Back   RacingBrake Forums > Category > New Development

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Old 12-28-2016, 08:40 PM   #1
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Default Two piece rotor for Ford 2016 Focus RS

We are pleased to announce our brake development program for RS:

https://www.racingbrake.com/category-s/7437.htm

Rotor replacement/Upgrade (Retaining OE calipers)

Two most valuable rotor combo kit we recommend:
1. Stock size: 350/300mm
RacingBrake OE Two Piece Rotor Kit for Ford Focus RS 2016+ (P/N 2562 & 2563)
2. Oversize rear: 350/350mm
https://www.racingbrake.com/ProductD...ode=FOR-IRK-08
Brake Kit (Front complete with RB calipers) options:

3. Downsize kit: 322/300mm (17" wheels)
RacingBrake 12.5" Brake Kit for Ford Focus ST/RS 2011+ (2016+) (P/N 2560 & 2563)
4. Oversize kit: 380/350mm (19" wheels)
RacingBrake 15" Track Duty Big Brake Kit for Ford Focus ST/RS 2011+ (2016+) (P/N 2564 & 2565)
5. Carbon Ceramic brake kit: 380x34mm
RacingBrake 15" Carbon Ceramic Big Brake Kit for Ford Focus ST/RS 2011+ (2016+) (P/N 2C58 & 2565)
Please note our front stock two piece replacement rotors are made to 28mm thickness (vs. stock 25mm) for extra thermal capacity. It's the same disc we use in our build for Porsche 997TT and GT3 rear.

RB offers the most comprehensive and valuable brake upgrade options for RS, please let us know if you have any question or suggestion.

Thank you.
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Old 01-07-2017, 11:09 AM   #2
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Forum Discussions:

Essex Designed Competition Brake Kit Available Now!
https://www.essexparts.com/news-blog...-available-now

AP Racing Brakes for Ford Focus RS
http://www.focusrs.org/forum/29-focu...l</blockquote>
325x32mm, 70 vane AP Racing disc 4pot $2,599
Features AP Racing CP9660 Radi-CAL six piston calipers
355x32mm, 72 vane AP Racing disc 6pot $3,899
Stoptech Brakes (More discussion about the disc finish - drill, slots, plain etc.)
http://www.focusrs.org/forum/29-focu...ch-brakes.html

Brembo’s New 2016+ Ford Focus RS (C346) Front Upgrades (More discussion about the rear sliding caliper set up)
http://www.focusrs.org/forum/29-focu...-upgrades.html

----------------------------------------------------------------------
will the brakes from the ST fit the RS?
http://www.focusrs.org/forum/29-focu...st-fit-rs.html
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Old 01-07-2017, 07:42 PM   #3
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StopTech 2 Piece Slotted Aero Rotor Kits Now at Focus RS Shop
http://www.focusrs.org/forum/50-focu...s-rs-shop.html

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Old 01-08-2017, 10:29 PM   #4
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Default two piece rotor for ST (320x25)

$850/pair

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Old 02-08-2017, 01:24 PM   #5
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Default RB weight comparison

RB Rotor


OE Rotor
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Old 02-09-2017, 02:50 PM   #6
nkgneto
 
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Very Cool, I know a few folks with RS'
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Old 02-09-2017, 03:03 PM   #7
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Default Official vender thread up on Focus RS forum

http://www.focusrs.org/forum/29-focu...ml#post1037873
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Old 04-01-2017, 02:04 AM   #8
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Default AP Brake Kit installation

http://www.focusrs.org/forum/15-focu...ml#post1166705

Here are the areas from the spindle casting that I dremeled down. The total surface area looks like a lot, but it's because I smoothed everything out from the spot that required the deepest grinding.











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Old 04-10-2017, 08:11 AM   #9
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Default Moment of Inertia

Discussion on FocusRS forum.

http://www.focusrs.org/forum/15-focu...ml#post1207057

Moment of inertia - Wikipedia

A quantity expressing a body's tendency to resist angular acceleration.
It is the sum of the products of the mass of each particle in the body with the square of its distance from the axis of rotation.







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Old 04-14-2017, 02:49 PM   #10
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Rear oversized (350x12 vs. OE 302x11mm) two piece rotors assembled:

Assembly weight: 11.6 lbs even larger and thicker than OE



Surface comes with curved slots help to collect the brake debris and keep the disc surface clean for better braking efficiency



Detail of RB two piece rotor hardware - Self locking nuts, keep hat and disc together w/o using locking agent (glues) that retain the same torque regardless of operating temperature, while discs are still free to expand and contract during heat cycles.

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Old 06-27-2017, 02:30 PM   #11
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Calipers (Unloaded - No pads)

OE 4 pot caliper


RB 6 pot track duty caliper (In hard anodized finish)


OE pad (138mm width) vs. RB pad (165mm); Same as D1365 (Lexus ISF) and D1116 (MB CLK55)



Pad backing plate: OE=4mm total 14mm, RB=6mm (made of high tensile strength steel) total 16mm



Pad weight comparison (OE vs. RB)





Hold down spring (OE vs. RB)



OE caliper (loaded w/pads & spring)



RB caliper (loaded w/pads & spring)



RB caliper with stainless steel pistons and internal dust seal



OE caliper with aluminum pistons and external dust boots

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