Front Derailleur 10 Speed MicroSHIFT MarvoLT Front Derailleur 9-Speed Double, 42T Max, Direct Front Derailleur 9 Speed 2x Double (7). 3x Triple (4). Filter By. Speed. Chainring Count ... R10 Front Derailleur 3×10 50T Max. FD R732 F BK. R10 Front Derailleur 3×10 52T... The Mishimoto J-Line is a small cooler packing a big punch, this universal front-mount intercooler has been engineered to handle 500HP, even with its compact size Precision forged steel shifting plate Full aluminum construction Dual pull design Item Specifications: Drivetrain Speeds: 9, Double or Triple: Double, Derailleur Capacity: 14, Front Der/Shifter Compatibility: Mountain, Front Derailleur Cable Pull: Dual, Front Derailleur Clamp: Braze-on, Front Derailleur Style: Traditional, Max Ring (teeth): 42, Full aluminum construction 51.8mm Boost chainline Micro Rotation MIcroshift FD R438 Folding Bicycle Front Derailleur 8 Speed Road Bike Straight Forward Dial