Girodisc GP-Series Rear Brake Pads 4004
McLaren Iron Conversion
Girodisc GP-Series rear pads for McLaren Iron Conversion systems provide a high-performance braking upgrade tailored for serious street drivers (GP10) and endurance-focused track users (GP30). These pads are precision-cut to the GP shape 4004 and engineered to deliver consistent modulation, heat stability, and long rotor life when paired with Girodisc iron conversion rotors.
Fits the Following Vehicles:
| Make |
Model |
Years |
Front |
Rear |
| McLaren |
570S (Iron Conversion) |
2016–2021 |
|
X |
| McLaren |
570GT (Iron Conversion) |
2016–2021 |
|
X |
| McLaren |
600LT (Iron Conversion) |
2019–2021 |
|
X |
| McLaren |
650S / 650S Spider (Iron Conversion) |
2014–2017 |
|
X |
| McLaren |
12C / 12C Spider (Iron Conversion) |
2012–2014 |
|
X |
Available Compounds
GP10 Street / Track-Day Compound
Designed for spirited street use and mild track driving. Offers low dust, excellent cold bite, and smooth pedal feel with strong fade resistance.
GP30 Endurance Race Compound
Built for extended high-temperature operation. Ideal for endurance racing and heavy track use where consistency and rotor life are key.
Features
• Precision-cut for Girodisc Iron Conversion rear systems
• Excellent modulation and heat control across both compounds
• Low rotor wear and stable friction at temperature
• Direct-fit replacement for GP pad shape 4004
• Sold/priced per axle set
Specifications
• Pad Shape: 4004
• Position: Rear
• Compounds included: GP10 Street / GP30 Endurance
• Compatible Systems: Girodisc Iron Conversion kits only
• Sold/priced per pair of pads (one axle set)
Girodisc GP-Series Pad FAQs
Do these pads fit OEM McLaren carbon-ceramic brakes? No. These pads are for Girodisc Iron Conversion kits only and will not fit factory PCCB/CCM calipers.
Which compound should I choose? GP10 is ideal for street and light track. GP30 is the choice for aggressive track use or endurance sessions.
Are these pads noisy? GP10 is generally quiet. GP30 may produce light noise during low-speed operation due to its high-heat race formulation.
Do I need to bed the pads? Yes—proper bedding ensures optimal friction transfer and prevents uneven pad deposits.
