Description Product Name: Brake Gear Shifter / Shifter Brake Levers Combination Set Speed Compatibility: 3×7 Speed (Left $3$ speed for chainrings, Right $7$ speed for freewheel/cassette). This totals $21$ gears. Style: Integrated Shifter and Brake Lever (often called “conjoined” or “combo” set). Features: Trigger shifting mechanism. Visual gear display window. Includes a pair of gear shift cables (the silver coiled wires shown). Use: Commonly used for entry-level Mountain Bikes (MTB), commuter bikes, or road bikes with flat handlebars.
