Stopwatch Extension Rack Bicycle Stopwatch Holder Extension Frame Bicycle Speed Meter Seats Extension Frame Mounted Holder Bicycle Accessories

Features:
The utility model can extend the mounting frame of the stopwatch , which makes the speed meter more convenient to observe and does not affect the driving.
Some small cameras can be installed to record the riding process, improve riding experience.
Aluminum alloy material, wear resistance, high strength, not easy to rust, long service life.
It is easy to install and operate.
Small size, light weight, easy to carry and store.