Specifications
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: 50-52T