1. Model: TX30-7
2. Shift gear position: front 3 x rear 7=21 speed
3. Weight: 200g/pair
4. Screw diameter: universal 22.2 cm
5. Purpose: bicycle speed control handle
6. Application: mountain bike/city bike/recreational vehicle/road bike/folding bike
7. Description: self-contained variable speed core, left hand fine adjustment, right hand seven speed
8. Features: ergonomic handle contour design, comfortable grip, clearly visible gear display, convenient installation and simple operation
