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.

FEATURES

• 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: 50-52T