This stunning model features oversized 13T pulley wheels, updated Shadow RD+ mechanism and is tailored specifically to provide maximum chain retention and shifting accuracy across the new Shimano 12-Speed drivetrain transmission system. This derailleur has been redesigned to ensure that chain tension is decreased when in the low gear position (41T on cassette), which makes shifting easier while the Shadow+ mechanism ensures chain stability.

• Material: Aluminium, Stainless Steel
• Drivetrain Speed: 12-Speed
• Pulley Teeth: 31T
• Total Capacity: 41T
• G Pulley Bearings: Sealed
• Link Bushings: Fluoric coated
• Spring Type: Shimano Shadow RD+
• Compatible Chain: CN-M9100
• Weight: 241g