Leasing Partners

Motorcycle Speaker & Subwoofer Adapters

Factory Harley-Davidson speaker locations are sized for OEM drivers — which means upgrading to larger, higher-performance speakers or adding a subwoofer to your saddlebags often requires an adapter to make it work. These solid, precision-machined and molded adapter brackets let you retrofit your bike to accept larger speaker sizes and fit aftermarket subwoofers into saddlebag and tour pack locations that weren’t originally designed for them.

Speaker Size Adapters

Designed to bridge the gap between your bike’s factory speaker cutout and the larger aftermarket speaker you want to run. Whether you’re stepping up from a 5.25" to a 6.5" or fitting a 6x9 into a fairing location, these adapters provide a solid, rattle-free mounting surface that keeps your speaker properly positioned and sealed against the baffle.

Saddlebag Subwoofer Adapters

Adding a subwoofer to a Harley saddlebag is one of the most impactful upgrades you can make to a touring audio system — but the factory bag geometry doesn’t accommodate a standard sub cutout. These adapters solve that by providing a purpose-built mounting ring or bracket that allows a proper subwoofer to drop into the saddlebag cleanly, maintaining an airtight seal for maximum bass output and enclosure efficiency.

Why a Quality Adapter Matters

• Solid mounting = no flex, no rattle — A rigid adapter transfers zero unwanted vibration to the panel
• Proper depth clearance — Engineered to account for motor depth so your driver clears the bag interior
• Airtight baffle seal — Maintains enclosure integrity for accurate, efficient bass reproduction
• Direct-fit applications — Designed specifically for Harley-Davidson Touring models so installation is clean and professional

Pair these adapters with our saddlebag subwoofers, fairing speakers, and sound deadener for a complete, purpose-built motorcycle audio upgrade.