• Hyperglide+ offers fast and shockless shifting
• Silent and stable operation in all gears
• Low-profile design
• Two cage lengths available: SGS, compatible with 12 speed 10-51T cassettes, and GS, compatible with 11 or 12 speed 10-45T cassettes
• Decreased rear derailleur and chain tension in low gear
• New bumper added to rear derailleur pulley cage
• Bigger 13T pulleys with sealed bearings for increased drivtrain efficiency
• Weight: 240g (SGS)