Overview
The Baer Brakes 6910554 is a left-side, 2-piece replacement rotor ring with a 14.000 inch outside diameter and 1.025 inch nominal thickness. It is a service part for select Baer brake systems. The ring is directional and built for the left side only, and it is a vented cast iron design with slot drilled and zinc-plated surfaces.
In a two-piece design the friction ring is a separate component from its mounting hat, so check what your existing setup uses before fitting. Baer lists twelve mounting bolt holes on a 9.90 inch bolt circle. The ring is graded as performance, is dynamically balanced, and is offered one per part number.
Compare the 14.000 inch diameter, 1.025 inch thickness and twelve-hole 9.90 inch bolt pattern with your current setup before installing.
Key features
- Two-piece rotor ring design
- Left-side directional ring
- Vented cast iron construction
- Slot drilled and zinc-plated surface
- Twelve mounting bolt holes on a 9.90 inch bolt circle
- Performance grade and dynamically balanced
Two-piece hub considerations
Two-piece brake rotors separate the friction ring from the hat that bolts to the hub. The hat carries the mounting bolts and the ring is secured to it, so the combination has to be matched as a set. Replacing only the ring is common when the hat is still sound, but the hat should be inspected for cracks and for wear around the bolt holes.
Slot drilled rings are often chosen for cooling and for clearing gas and water from the friction surface. Zinc plating protects the ring from rust during storage, though it does not change how the friction face wears. Vented construction moves air between the two faces, which helps heat leave the disc during repeated stops.
- Inspect the hat for cracks before reusing it
- Clean rust from the hub face and bolt holes
- Replace pads when the friction material is worn
- Use new fasteners if the existing hardware shows wear
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 6910554 |
| UPC | 844165012177 |
| Construction | Two piece |
| Material | Cast iron |
| Outside diameter | 14.000 inch |
| Nominal thickness | 1.025 inch |
| Mounting bolt hole quantity | 12 |
| Mounting bolt hole circle diameter | 9.90 inch |
| Surface type | Slot, drilled and zinc plated |
| Solid or vented | Vented |
| Brake surface | Directional |
| Axle side | Left |
| Grade type | Performance |
| Emission code | 6 |
| ABS tone ring included | No |
| Sold as | Each |
| Country of origin | USA |
Vehicle fitment
The ring is made for select Baer brake systems, so confirm fit for your vehicle’s year, model and trim before ordering.
Confirm your vehicle’s year, model and trim before ordering. The twelve-hole 9.90 inch bolt pattern must match your hub exactly.
Installation notes
Because this is a two-piece, left-side directional ring, verify the side and the mounting arrangement before installation. Have a qualified technician carry out the work and inspect the remaining brake parts.
What’s included
One left-side 2-piece slot drilled and zinc-plated replacement rotor ring.
Not included: the mounting hat, which is a separate piece in a two-piece design, and the right-side ring, since rotors are sold individually.
