This is a low profile CLAMP that attaches to your handlebars and an accessory mounting tube. The clamp can go almost anywhere- all it needs is 1/2 inch (12mm) of straight handlebar. The accessory mounting TUBE is available separately.
The outside clamp is designed to clamp around a painted or anodized 7/8 inch (22.2mm) tube. Only 1/2 inch (12.7mm) of open handlebar space is required.
The inside clamp is designed to clamp to the inside of a 7/8 inch tube with a wall thickness of 0.065 to 0.049 inches (1.6 to 1.24mm). Most 7/8 tubing for bikes and trikes is in this range.
This clamp is designed to be small and lightweight. It is not designed for heavy loads or to carry steering forces.