Overview
The EBC Brakes S1KF1450 is a front Stage 1 Premium Street brake kit with Ultimax pads and stock replacement rotors for the 2004–2005 Buick Rainier, 2003–2005 Chevrolet SSR, 2002–2005 Trailblazer EXT, 2004–2005 GMC Envoy XUV and 2003–2008 Isuzu Ascender.
EBC describes Stage 1 as a general pad and rotor replacement for everyday driving, for drivers who do not need high performance parts. It pairs Ultimax pads with stock replacement rotors and aims for stopping characteristics similar to the original pads and rotors.
About this part
The Stage 1 kit suits drivers who want brakes that feel close to the originals. It uses plain, uncoated stock replacement rotors with Ultimax pads that have an OEM-like feel. It is a sensible choice for a commuter or family SUV that does not need a performance upgrade. Bedding in is straightforward, and the pedal feel stays familiar. For heavier use, higher stages such as the Stage 3 truck and SUV kits with slotted rotors are available.
Key features
- Front Stage 1 Premium Street kit
- Ultimax pads
- Stock replacement rotors
- OEM-like components
- Rotors are not coated
- Brake lines not included
Choosing a brake upgrade level
Brake kits are grouped by how they are meant to be used. A stage kit built around OEM-like pads and plain replacement rotors suits everyday driving, with stopping that stays close to the original feel. Drivers who tow, carry heavy loads or drive long mountain grades often move to kits with slotted or drilled rotors and harder pad compounds.
Before choosing, consider how the vehicle is used and what pedal feel is expected. Pads that bite harder can heat the rotors more, and mismatched pads and rotors can cause noise. Keeping one kit’s pads and rotors together keeps the setup consistent.
- Match the pad compound to the rotor type
- Plan for brake fluid replacement at the same service
- Inspect the hoses when the lines are not included
- Choose a higher stage only when the use requires it
Specifications
| Brand | EBC Brakes |
|---|---|
| Part number | S1KF1450 |
| UPC | 847943047798 |
| Product type | Stage 1 Premium Street brake kit |
| Brake position | Front |
| Pads | Ultimax |
| Rotor type | Standard |
| Rotors coated | No |
| Includes brake lines | No |
| Fitment type | Direct fit |
Vehicle fitment
The manufacturer fitment list for the EBC Brakes S1KF1450 includes the following vehicles and trims:
- 2004–2005 Buick Rainier (CXL, CXL Plus)
- 2003–2005 Chevrolet SSR (Base)
- 2002–2005 Chevrolet Trailblazer EXT (LS, LT, North Face)
- 2004–2005 GMC Envoy XUV (SLE, SLT)
- 2003–2008 Isuzu Ascender (Base, LS, Limited, S)
The list covers the years shown for each model; it does not include later Trailblazer or Envoy models. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Ultimax pads and stock replacement rotors.
Not included: Brake lines.









