PARAGON 2-Piece Rear Rotors
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PARAGON 2-Piece Rear Rotors – Toyota GR Yaris (GXPA16) / GR Corolla (GZEA14) – 312 x 18mm
These PARAGON 2-piece rear rotors are a direct upgrade over the factory rear discs on the Toyota GR Yaris (GXPA16) and GR Corolla (GZEA14). Sold as a pair, each 312 x 18mm rotor pairs a slotted cast-iron ring with a fixed aluminium hat to cut unsprung weight and stay consistent through long track sessions.
Choose a black hardcoat anodised hat or a clear hard anodised hat. The clear finish holds its colour under extreme heat and is the better pick for track use, while the dyed black finish can discolour once temperatures pass about 260°C.
Note: Bolts on with no modifications, works with the factory ABS and keeps the factory brake bias. Use OEM pads or aftermarket pads with the same pad depth. Installation by a professional is recommended.
Features
- 2-piece design with a fixed (non-floating) hat, 10-bolt
- CM-250 high-carbon cast-iron rings, heat treated and CBN machined, run-out held within 0.03mm
- Directional vanes run up to 30% cooler than the factory rotors
- Slotted faces keep the pad contact surface clean and consistent, wet or dry
- CNC-machined 6061-T6 aluminium hats, Mil-spec Type III hard anodised
- Replaces OEM part 42431-52190 / 42432-52010
Pairs Well With
- PARAGON 2-Piece Front Rotors – Toyota GR Yaris (GXPA16) / GR Corolla (GZEA14) / LBX Morizo RR – 356 x 28mm
- PARAGON 6-Piston Front Big Brake Kit – Toyota GR Yaris (GXPA16) / GR Corolla (GZEA14) / LBX Morizo RR
- PARAGON 4-Piston Rear Big Brake Kit – Toyota GR Yaris (GXPA16) / GR Corolla (GZEA14)
- PARAGON Titanium Brake Pad Shims – Toyota GR Yaris (GXPA16) / GR Corolla (GZEA14) / LBX Morizo RR
- DIXCEL Rear Brake Pads – Toyota GR Yaris (GXPA16) / GR Corolla (GZEA14H)
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Toyota | GR Yaris | GXPA16 | 2020+ | Rear; RZ / RZ High Performance, G16E-GTS |
| Toyota | GR Corolla | GZEA14 (E210) | 2023+ | Rear; Core / Circuit Edition / Morizo Edition |
Product
- Brand
- Paragon
- Rotor size
- 312 x 18mm
- Hat finish options
- Clear hard anodised or black hardcoat
- Replaces OEM part
- 42431-52190 / 42432-52010
- Part number(s)
- P2R.131.312.180.19600.01.03.01.R, P2R.131.312.180.19600.01.03.02.R
Details
- Position
- Rear (pair)
- Construction
- 2-piece, fixed hat (non-floating)
- Ring material
- CM-250 high-carbon cast iron, heat-treated and CBN-machined
- Hat material
- 6061-T6 aluminium, CNC-machined, Type III hard anodised
- Mounting
- Fixed hat (non-floating), 10-bolt
- Face / cooling
- Slotted, directional ventilation vanes
- Run-out / balance
- ≤ 0.03mm lateral run-out / balanced within 2 g
Contents
- One pair of Paragon Performance 312mm x 18mm 2-piece rotor assemblies.
- Hat Material: Black hard coat/hard anodised 6061-T6 aerospace-grade aluminium.
- Bobbins: Stainless steel.
- Anti-Rattle Clips: Included.
- Assembly: Fully assembled and ready to install.
- Detailed installation manual.

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