• Altus 3x9 speed front derailleur
• Top gear: 40T
• Capacity: 18T
• Top-mid tooth difference: 10T
• Chainstay angle: 63-66°
• Chainline: 50mm
• Altus 3x9 speed front derailleur
• Top gear: 40T
• Capacity: 18T
• Top-mid tooth difference: 10T
• Chainstay angle: 63-66°
• Chainline: 50mm