DBA DBA3685EX En-Shield OEX Cross-Drilled Dimpled HC Brake Rotor Right Rear

The DBA DBA3685EX is a Street Series En-Shield OEX Hybrid Composite (HC) brake rotor engineered as a direct OE-style replacement for the right-rear position. Manufactured by Disc Brakes Australia (DBA), this rotor combines a full corrosion-resistant coating with an OE-compatible cross-drilled and dimpled disc surface for restored stopping performance with improved durability.

En-Shield Corrosion Protection:

• Full-rotor zinc/aluminium water-based coating baked onto the entire rotor surface — including non-friction areas
• Eliminates surface rust and corrosion throughout the service life of the rotor
• No pre-installation cleaning required — ready to fit straight from the box

OEX Cross-Drilled & Dimpled Design:

• OE-compatible cross-drill and dimple pattern matches original equipment hole placement and geometry
• Increases exit points for brake pad friction dust and gases, enhancing pad bite and braking response
• Directional fitment — designed specifically for right-hand (passenger side) rear installation

Hybrid Composite (HC) Two-Piece Construction:

• Cast iron braking surface (disc ring) permanently bonded to an aluminium or steel hat via rivets or co-casting
• Two-piece design reduces overall rotor weight by up to 15% compared to a conventional one-piece unit
• Improved thermal efficiency with reduced heat transfer from the disc ring to the hub

Additional Features:

• CBN (Cubic Boron Nitride) machine-turned finish minimises disc thickness variation, reducing potential for pad knock and premature wear
• Unique Kangaroo Paw vane design delivers up to 20% better heat dissipation compared to conventional vane designs
• Benchmarked for use with DBA Street Series or Street Performance brake pads
• Full R90 certification for additional peace of mind
• DBA warranty: 12 months or 12,000 miles from date of purchase

The DBA3685EX is the ideal upgrade-in-kind replacement rotor for owners seeking OE-matched cross-drilled performance with the added benefit of full corrosion protection and a lightweight composite construction.