Overview
The Baer Brakes 4261579R is a red Classic Series front brake kit with a 2-piston pad guided caliper (PGC) and a 13-inch one-piece integral hub rotor, made for applications that use Wilwood Pro Mii spindles with a 5×4.75 bolt pattern. No specific make, model or year is named for this part number.
The 13-inch Classic system is made for smaller wheels and fits select 17-inch or larger wheels. It is built around a 15/16 inch master cylinder and a proper pedal ratio, so check the hydraulic setup before choosing this kit.
Key features
- Aluminum two-piston pad guided caliper with red powder coating and black Baer logo
- One-piece integral hub rotor with a slotted, drilled, zinc-plated surface
- Caliper includes dust and weather seals
- Takes the common FMSI D0412 ceramic brake pad
- Premium bearings with races pre-installed
- Dust caps and mounting brackets included
- Brake hoses are steel braided and DOT approved
Choosing the right setup
Brake upgrades on classic vehicles often hinge on the hydraulic side more than the rotor. A master cylinder that is too large can overwhelm the pedal feel, while one that is too small may not move enough fluid for the calipers. Pedal ratio and booster status should be reviewed together so the full system works as designed.
Spindle compatibility is the first check for a pad guided kit like this one. Confirm the hub bolt pattern, the spindle style and the wheel offset, since a wheel that clears the caliper on paper can still rub in practice. Pads and rotor are normally replaced together, and bearings should be inspected while the hub is apart.
- Confirm master cylinder bore and pedal ratio before buying
- Check wheel offset against the caliper body
- Replace pads and rotor together
- Repack or inspect bearings when the hub is removed
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4261579R |
| UPC | 90127853092 |
| Caliper | 2-piston, pad guided (PGC), floating, aluminum |
| Caliper finish | Red powder coated with black logo |
| Rotor | 1-piece integral hub, vented, slotted, drilled and zinc plated |
| Rotor outside diameter | 13.0 inch |
| Rotor thickness | 1.1 |
| Minimum wheel diameter | 17.0 inch |
| Brake pad | FMSI D0412, ceramic |
| Brake hose | Steel braided, DOT approved |
| Wheel bolt pattern | 5×4.75 |
| Spindle type | Wilwood Mustang II Pro |
| Template | D082H |
| Fitment note | w/Wilwood Pro Mii spindles (5×4.75BC) |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
This kit is built for Wilwood Pro Mii spindles on a 5×4.75 bolt pattern. Confirm your spindle and hub pattern before ordering.
It is built for Wilwood Pro Mii spindles, not stock spindles or other spindle designs. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The system is designed for vehicles with a 15/16 inch master cylinder and the correct pedal ratio. Manual brake setups can use a 7/8 inch master cylinder for lighter pedal effort. A master cylinder larger than 15/16 inch needs too much pedal input to build proper line pressure.
The hub and rotor are one integral piece, and bearing races come pre-installed. Brake work should be done by a qualified installer.
What’s included
Integral hub rotor, 2-piston PGC caliper, premium bearings with races pre-installed, dust caps, mounting brackets and all necessary hardware.
Not included: The Wilwood Pro Mii spindles the kit is built to use are not part of the kit.













