- Shimano’s new T4000 Alivio groupset has been surpassed in both design and functionality.
- Fits 3-speed crank section.
- With block mount for 34.9mm frame
- Double traction: so that the cable can come from both above and below.
- Top Swing: means that the gear lever is swinging on the block.
- Oscillation from 66 to 69 degrees.