SMLLOW Mountain Road Bike 13T Bearing Rear Derailleur Pulley Guide Roller Wheel
- Type: Derailleur Pulley
- Material: Aluminium Alloy, Metal Steel Bearing
- Teeth: 13
- Features: Durable, Universal, Easy to Install
- Diameter: 50mm/1.97"", Inner Diameter: 6mm/0.24"" (Approx.)