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Boom + Bar Mount

Boom + Bar Mount is a premium extension arm kit that can be easily attached to most round handlebars and seatposts to capture fully immersive bike footage.

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The Boom + Bar Mount is a premium extension arm kit that can be easily attached to most round handlebars and seatposts to get full-spectrum shots of you, your bike and your surroundings. Its two carbon fiber arms can be used together or individually to record shots of you facing the camera, follow-cam footage or side shots. Each arm features integrated swivel points that let you twist and turn your rig to get the exact capture angle you want. This powerful creative tool also includes a ball-joint camera mount for fine-tuning your shots or totally changing things up on the fly.

Feature Bullets

  1. Premium carbon fiber arms deliver exceptional strength and durability in a lightweight design
  2. Lightweight aluminum handlebar/seatpost/pole mount locks onto almost any round tube and stays securely in place
  3. Convenient folding design makes it easy to take anywhere, pack away or adjust the extension length on the go
  4. Built-in metal mounting fingers swivel 360° to let you capture the action from any angle
  5. Attachable ball-joint camera mount provides full camera rotation and tilt for maximum capture flexibility
  6. Included hex key lets you easily adjust the hex screws and securely lock the arms in place
  7. Included curved adhesive mount can be attached to a helmet and used with the extension arms to record from dramatic new perspectives
  8. Included triangulation support slider lets you use one arm to support the other to create ultra stable capture platforms
  9. Can be combined with additional Boom extensions (sold separately) to create your own customized gear setups

What’s Included

  • 2 Carbon Fiber Arms
  • Ball-Joint Camera Mount
  • Pro Handlebar/Seatpost/Pole Mount
  • Bar/Post Adapters (22.2-23.8mm, 25.4-27.2mm, 28.6mm, 30.9-31.8 mm, 35mm)
  • Flat Adhesive Mount
  • Curved Adhesive Mount
  • Mounting Buckle
  • Triangulation Support Slider
  • 4mm Hex Key
  • 2 Extra Hex Screws
  • Hex Key Storage Clip
  • Drawstring Bag


  • All GoPro cameras


Use caution when using your Boom, GoPro, and its accessories. Always be aware of your surroundings to avoid injuring yourself and others. Always select a helmet that meets the applicable safety standard when you use a helmet with Boom or another GoPro mount. Always follow the helmet manufacturer's instructions on safe helmet use. If you attach your Boom to your helmet, GoPro recommends it be attached to the rear of the helmet. Boom is not intended for and should not be used for skydiving, base jumping, bungee jumping or other aerial activities and sports.

Product Attributes
Manufacturer number:AEXTM-011
Product weight:0.154 kilograms
Technical Specifications
Compatible models: HERO8
HERO11 Mini