PARAGON 2-Piece Rear Rotors
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PARAGON 2-Piece Rear Rotors – Mercedes-AMG GLA 45 (X156) – 330 x 22mm
These PARAGON 2-piece rear rotors replace the factory rotors on the Mercedes-AMG GLA 45 (X156) with a lighter floating assembly made for track days and spirited road driving. Sold as a pair, each 330 x 22mm rotor joins a slotted cast-iron ring to an aluminium hat to cut unsprung weight and resist fade and judder over long 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
- Fully floating 2-piece design, short D-Bobbin 10-bolt mounting
- 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
- Weight 5.36 kg each, 23% lighter than the factory rotor
- Replaces OEM part 172-423-01-12 / 1724230112
Pairs Well With
- PARAGON 2-Piece Front Rotors – Mercedes-AMG GLA 45 (X156) – 350 x 32mm
- DIXCEL Rear Brake Pads – Mercedes-AMG A45 (W176) / CLA45 (C117) / GLA45 (X156)
- DIXCEL Front Brake Pads – Mercedes-AMG A45 (W176) / CLA45 (C117) / GLA45 (X156)
- Xtreme-DI High-Pressure Fuel Pump – Mercedes-AMG A45 (W176) / CLA45 (C117) / GLA45 (X156) (M133 Engine)
- AST Suspension Lowering Springs - Mercedes-Benz GLA (X156)
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Mercedes-AMG | GLA 45 | X156 | 2014-2018 | Rear |
| Mercedes-AMG | A 45 | W176 | - | Rear |
| Mercedes-AMG | CLA 45 | C117 | - | Rear |
Product
- Brand
- Paragon
- Rotor size
- 330 x 22mm
- Hat finish options
- Clear hard anodised or black hardcoat
- Replaces OEM part
- 172-423-01-12 / 1724230112
- Part number(s)
- P2R.029.330.220.21700.08.01.01.R, P2R.029.330.220.21700.08.01.02.R
Details
- Position
- Rear (pair)
- Construction
- 2-piece 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
- D-Bobbin (Short), 10-bolt
- Face / cooling
- Slotted, directional ventilation vanes
- Weight
- 5.36 kg per rotor (23% lighter than OEM)
- Run-out / balance
- ≤ 0.03mm lateral run-out / balanced within 2 g
Contents
- One pair of Paragon Performance 330mm x 22mm 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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