FRONT DERAILLEUR, FD-R8150, ULTEGRA, FOR REAR 12-SPEED, DOWN-SWING, BRAZED-ON TYPE, CS-ANGLE: 61-66, FOR TOP GEAR: 50-52T, CL: 44.5MM ONE

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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. 

• ・Our 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: 46-52T