Quad Lock

Adjustable Stem Cap Mount

The Quad Lock Adjustable Stem Cap Mount delivers a clean, centered bike phone mount position by installing directly under the stem cap—ideal for riders who want reliable on-bike navigation without cluttering the handlebar.

Built around a rigid aluminum body with a low-profile black lever and hardware, this adjustable version adds a hinged design that accommodates upright stem angles up to 55°, giving more fit flexibility across commuters, gravel bikes, and MTB cockpits. It locks in with all Quad Lock cases and adapters for a consistent, secure interface across multiple bikes and devices.

• Under-stem-cap mounting position - Centers the phone for easy glanceable routing while keeping bars free for lights, computers, and bags
• Adjustable hinged design (up to 55°) - Fits upright stems and adds articulation to fine-tune screen angle and visibility
• Aluminum body construction - Maintains a solid, stable mount feel with reduced flex over rough pavement and gravel
• Quad Lock compatibility - Works with all Quad Lock cases and adapters for a consistent, quick on/off phone connection
• Black lever and hardware - Low-key finish that blends into modern cockpits