Aero seatposts create a mounting problem that round posts don't have. The teardrop profile that reduces drag also prevents standard rubber straps from wrapping securely around the post. Lights slip, rotate, or point at odd angles when the strap can't find a consistent surface to grip. The Lezyne Aeropost 3D Adapter Strip Series solves this by creating a curved mounting surface that the rubber strap can wrap around properly, converting the aero profile into something the light can actually hold onto.

The adapter uses 3D printing to create a shape optimized specifically for aero post profiles. The curved inner surface conforms to the teardrop shape while the outer surface provides the round profile that Strip Series lights expect. A textured finish on both surfaces improves grip, preventing the adapter from slipping on the post and the light from slipping on the adapter. At 13 grams, it adds negligible weight to your setup while restoring full compatibility with the Strip Series mounting system.

Installation works with the same rubber strap that comes with Strip Series lights. Position the adapter against the aero post, wrap the strap around both the adapter and post, then tension it as you would on a round post. The strap pulls the adapter tight against the post surface while the light mounts to the adapter's outer curve. No tools required, and the whole assembly can be repositioned or removed in seconds if you need to adjust angle or height.... Read More