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R1 Concepts 2551-2308-00 Disc Brake Pad Set - Rear
Rear Brake Pads for Buick Encore GX and Trailblazer
R1 Concepts R1 Optimum OE Pads, part number 2551-2308-00, are rear disc brake pads for select Buick Encore GX and Chevrolet Trailblazer applications. This pad set is built for drivers who need a direct-fit rear brake service part with vehicle-specific coverage.
Key Features
- Rear disc brake pad set for select compact SUV applications
- Compatible with 2020-2026 Buick Encore GX, rear
- Compatible with 2021-2025 Chevrolet Trailblazer, rear
- Compatible with 2026 Chevrolet Trailblazer, rear
- R1 Optimum OE Pads product line from R1 Concepts
- Part number 2551-2308-00 for fitment-based lookup
Product Details
The R1 Optimum OE Pads line focuses on OE-style replacement coverage for everyday brake service. This rear disc brake pad set is listed for the Buick Encore GX and Chevrolet Trailblazer, with fitment spanning 2020-2026 Buick Encore GX rear and 2021-2026 Chevrolet Trailblazer rear applications. Use part number 2551-2308-00 when confirming the correct rear pad set for your vehicle.
Common Brake Service Issues
- Rear brake pad wear requiring replacement
- Squealing or noise from worn rear pads
- Reduced braking performance from thin friction material
- Uneven rear brake response during routine service
- Brake inspection findings calling for rear pad replacement
Installation Notes
Verify rear axle fitment before ordering. For 2020-2026 Buick Encore GX rear applications and 2021-2025 Chevrolet Trailblazer rear applications, one fitment note specifies sensor BPS-45001 (1) is required. Confirm the sensor requirement on the vehicle before installation. This part number, 2551-2308-00, should be matched to the rear position only.
Quality Assurance
R1 Concepts markets the R1 Optimum OE Pads line as an OE-style brake pad offering for direct replacement service. Confirm vehicle fitment by year, make, model, and rear position before purchase.
This part fits 13 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2026 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2026 | Chevrolet | Trailblazer | Rear | R1 Optimum Oe Pads |
| 2025 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2025 | Chevrolet | Trailblazer | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2024 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2024 | Chevrolet | Trailblazer | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2023 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2023 | Chevrolet | Trailblazer | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2022 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2022 | Chevrolet | Trailblazer | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2021 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2021 | Chevrolet | Trailblazer | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
| 2020 | Buick | Encore GX | Rear | Req Sensor BPS-45001 (1); R1 Optimum Oe Pads |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.