AP Racing by Essex Radi-CAL ENP 2012-2025 McLaren 720S 650S 600LT MP4-12C Competition Brake Kit (Front 9661/394mm)
- Track-Ready: Complete front ENP brake kit engineered for extended track sessions
- Lightweight: Within a few lbs per side of OEM carbon ceramic without CCM expense
- ENP Finish: Jewel-like Electroless Nickel Plated caliper – incredibly durable and easy to clean
- Radi-CAL Technology: AP Racing’s patented asymmetrical design with 30%+ stiffness increase
- Ventilated SS Pistons: Domed back stainless steel with anti-knockback springs
- 84-Vane Discs: 394x34mm fully floating J Hook racing discs
- OEM Integration: Clears OEM wheels without spacer, works with stock ABS/master cylinder
- Included: Pad tension kit and disc burnishing at no additional cost
AP Racing by Essex Radi-CAL ENP 2012-2025 McLaren 720S 650S 600LT MP4-12C Competition Brake Kit (Front 9661/394mm)
AP Racing by Essex
Radi-CAL ENP Competition Brake Kit McLaren 720S · 650S · 600LT · MP4-12C
Professional-grade braking engineered for extended track sessions. All the performance of carbon ceramic — without the $15K+ replacement cost.
The CCM Alternative
Track Performance Without The Carbon Ceramic Headaches
Carbon ceramic brakes look great on a spec sheet, but on track they tell a different story: oxidation damage, limited pad options, astronomical replacement costs, and special handling requirements.
The AP Racing by Essex Radi-CAL Competition Kit delivers within a few pounds of OEM CCM weight, with championship-proven components that have dominated NASCAR, ALMS, Le Mans, and Formula 1 for over 50 years.
Preserve your expensive OEM ceramics for concours and resale. Track your McLaren the way it was meant to be tracked.
Why Choose This Kit
Engineered Without Compromise
Every component designed for one purpose: dominating extended track sessions
CCM Alternative
Within a few lbs per side of OEM carbon ceramic — without the $15K+ replacement cost or special handling
ENP Finish
Jewel-like electroless nickel plating won't chip, flake, or fade at track temps. Same finish used on F-15 jets.
Radi-CAL Tech
30%+ stiffer than conventional calipers. Superior pedal feel, even pad wear, and longer service life.
OEM Integration
Clears factory wheels without spacers. Seamless ABS, stability control, and master cylinder integration.
Pre-Burnished
Discs arrive burnished in Ferodo compound — install and drive hard immediately. No bed-in hassle.
Pad Options
Commonly available pad shapes from every major manufacturer. You'll never be stuck without pads.
Quick Pad Change
Bridge bolts pop out with a 6mm hex. Change pads faster than you can remove the wheel.
Lifetime Support
Essex is AP Racing's official rebuild center. Professional reconditioning available for the life of your kit.
Complete Kit
What's In The Box
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AP Racing Radi-CAL Pro5000R Calipers (Pair) Front: CP9661 6-piston (6.2 lbs) · Rear: CP9449 4-piston (4.85 lbs) — ENP finish with ventilated stainless steel pistons and anti-knockback springs
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AP Racing J Hook Racing Discs (Pair) Front: 394x34mm with 84 vanes · Rear: 380x32mm with 72 vanes — 2-piece fully floating design with 6061 T6 aluminum hats
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Professional Disc Burnishing Included Discs arrive pre-burnished in Ferodo Racing compound — ready to install and drive hard immediately
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Caliper Mounting Brackets & Hardware Precision machined steel (front) and 6061 T6 aluminum (rear) with aircraft-quality hardware
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Essex Pad Tension Kit Billet aluminum blocks with stainless steel springs — eliminates brake noise
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Detailed Installation Instructions Step-by-step guide for proper fitment
Technical Data
Specifications
Front Kit (CP9661/394mm)
6-Piston Radi-CAL Pro5000RRear Kit (CP9449/380mm)
4-Piston Radi-CAL Pro5000RHow It Compares
Essex/AP Racing vs. OEM
| Specification | Essex/AP Racing BBK | McLaren 720S OEM CCM |
|---|---|---|
| Front Caliper Weight | 6.2 lbs Comparable | 8.26 lbs |
| Rear Caliper Weight | 4.85 lbs Lighter | 7.23 lbs |
| Front Disc Weight | 21.5 lbs | 14.1 lbs (CCM) |
| Rear Disc Weight | 17.0 lbs | 12.2 lbs (CCM) |
| Front Disc Vanes | 84 Directional Superior | N/A (CCM) |
| Replacement Disc Cost | ~$400-500/ring 90% Less | $4,000-8,000+/disc |
| Pad Options | All Major Brands More Choice | CCM-Specific Only |
| Track Durability | Proven (ALMS, NASCAR, F1) | Oxidation Risk at Track Temps |
Fitment
Compatible Vehicles
Wheel Fitment
Confirmed Wheels & Downloads
Gallery
Product Images
Not Included
Brake Pads: Racing pads are a personal choice. Select your preferred Ferodo compound at checkout — DS2500, DS1.11, DSUNO, or DS3.12.
Brake Lines: OEM brake lines are retained and work perfectly with this kit.
Important Notes
Application: Designed for track/competition use. Off-road use only.
MP4-12C: Models with factory iron brakes require the Essex parking brake relocation bracket (sold separately).
Professional Installation
Function Factory Performance is a certified Thorney Motorsport Independent Specialist for McLaren on the West Coast.
We offer professional installation, track support, and ongoing service for your AP Racing brake system.
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Professional Installation Available
As a certified Thorney Motorsport Independent Specialist, Function Factory Performance offers expert installation and track support for your AP Racing brake system.
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Price range: $6,399.00 through $6,599.00
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