microSHIFT R10 Front Derailleur - 10-Speed Double 56t Max Braze-On Shimano Compatible BLKmicroSHIFT R10 Front Derailleur 10 Speed Double 56t Max Braze On Shimano Compatible Black. R10 front derailleurs work with 10 speed Shimano compatible road shifters. Designed to work with a variety of chainring combinations these workhorse components will get you rolling again. Cold forged aluminum body Precision forged steel shifting plate TECH SPECS Double or Triple Double Drivetrain Speeds 10 Weight 96 Derailleur Capacity 16 Front Derailleur Clamp