microSHIFT ADVENT Front Derailleur - 9 Speed Double 44-48T Max 31.8/34.9mm Band ClampmicroSHIFT ADVENT Front Derailleur 9 Speed Double 44 48T Max 31. 8 34. 9mm Band Clamp. When your adventure needs more gear range the ADVENT front derailleur gives you all the options you need. Capable of handling up to a 16T chainring differential you can achieve range of over 560% when paired with an 11 42 ADVENT cassette and long cage rear derailleur. Compatible with long cage ADVENT rear derailleur only TECH SPECS Double or Triple Double Drivetrain