Front derailleur Shimano ULTEGRA Di2 FD-R8150 Brazed-on 2x12-speed

More compact and faster than ever, the ULTEGRA R8150 front derailleur performs digitally precise front shifts under any circumstances. Combining Shimano's new Di2 platform and the road incarnation of HYPERGLIDE+, the ULTEGRA R8150 front derailleur shifts between chainrings with our fastest, most seamless action. Shimano's fastest ever front shifting, 45% faster than FD-R9150 Smaller, sleeker, lighter Frontal area reduced by 33% Weight cut to 116 g Top gear teeth capacity: 50-54T Weight: 110 g Down Swing Chain line (mm): 44.5 Chain stay angle (deg.): 61 - 66 Compatible chain: 12-speed Firmware update by E-TUBE PROJECT Link bushings: 4 Brazed-On mounting Top gear teeth: 50-54T Total capacity: 16T Front speeds: 2 Rear speeds: 12 SD300 connector (pcs): Not available SD300 port (pcs): 1 SD50 connector (pcs): Not available SD50 port (pcs): Not available Material: base, bracket: aluminium (painted) / chain guide: steel (plated) / outer link: aluminium (painted) / inner link: steel (painted) Compatibility: STI lever (Not included): ST-R9250, ST-R9270, ST-R9160, ST-R9180, ST-R8150, ST-R8170, ST-R8060 Crank (Not included): FC-R9200, FC-R9200-P, FC-R8100, FC-R8100-P Chain (Not included): CN-M9100, CN-M8100, CN-M7100, CN-M6100