Hammerhead | Karoo Quarter-Turn Mounting Adapter

Your Karoo. Your existing mount.

The Hammerhead Karoo Quarter-Turn Mounting Adapter allows the Hammerhead Karoo bike computer to attach to standard quarter-turn handlebar mounts.

It converts the Hammerhead Mounting System underneath the computer into the widely used Garmin-compatible quarter-turn interface. Its tool-free slide-and-click installation makes it useful as a replacement adapter or for riders who want to use their Karoo with an existing mount.

Important Compatibility Note

Designed for the Hammerhead Karoo and standard Garmin-compatible quarter-turn mounts.

It is not compatible with Wahoo-style quarter-turn mounts.

A Quarter-Turn Mounting Adapter is already included with a new Hammerhead Karoo. This separately sold adapter is intended as a replacement or spare.

Key Features

• Quarter-Turn Mount Compatibility
Allows the Hammerhead Karoo to attach to standard Garmin-compatible quarter-turn mounts.

• Tool-Free Installation
Slides into the mounting interface underneath the Karoo and clicks securely into position.

• Existing Mount Support
Allows riders to use an existing quarter-turn mount instead of replacing the complete mounting system.

• Replacement or Spare Adapter
Useful as a replacement for a lost or damaged adapter or as a spare for travel and multiple-bike setups.

• Road and MTB Use
Compatible with standard quarter-turn mounts used across road, gravel, and mountain bikes.

Technical Specifications

• Category
Bike Computer Mount Adapter

• Device Compatibility
Hammerhead Karoo

• Computer Interface
Hammerhead Mounting System

• Mount Interface
Standard Garmin-compatible quarter-turn

• Computer Mount Type
Road and MTB

• Installation
Tool-free slide-and-click attachment

• Included Components
Hammerhead Karoo Quarter-Turn Mounting Adapter

• Excluded Components
Hammerhead Karoo bike computer and handlebar mount

Model Codes

• Manufacturer Part Number
00.7918.257.001

Use this adapter to mount your Hammerhead Karoo to an existing Garmin-compatible quarter-turn mount.