Caliso BR901278 Rear Vented Drum-In-Hat Disc Brake Rotor

The Caliso BR901278 is a rear vented disc brake rotor featuring a drum-in-hat (DIH) design that integrates the parking brake drum directly into the rotor. Constructed from full cast iron, this rotor delivers a durable, reliable braking surface engineered to meet OE fit, form, and function requirements.

Key Features:

• Vented rotor design promotes airflow to dissipate heat and reduce brake fade during heavy or repeated braking
• Drum-in-hat construction integrates the parking brake drum within the rotor hub for streamlined service
• Full cast iron construction for consistent strength, durability, and thermal stability
• Non-directional swirl finish on the braking surface — no machining required prior to installation
• Precision hub hole chamfer ensures a hub-centric fit for proper alignment and reduced vibration
• No ABS tone ring included

Specifications:

• Position: Rear
• Outside Diameter: 11.81 in (300 mm)
• Nominal Thickness: 0.87 in (22 mm)
• Discard Thickness: 0.78 in (19.9 mm)
• Overall Height: 3.15 in (80 mm)
• Center Hole Diameter: 3.11 in (79 mm)
• Mounting Bolt Hole Quantity: 5
• Mounting Bolt Circle Diameter: 5.12 in (130 mm)
• Brake Surface: Non-directional
• Rotor Type: Vented, Drum-in-Hat

Cross-Reference Part Numbers: 68195534AA, 68195534AC, 781138, PRT6278, 18A81138, 901278, 48881138

This disc brake rotor is sold individually — one rotor per purchase.