Ultegra FD-R8150 12spd. Force eTap AXS unprecedented side and upward vision

unprecedented side and upward vision

GRX Di2 11 speed rear derailleur for 1X cranks

Single tension spring prevents contact with the chainstay resulting in a silent ride

we're still building

B17 Special

Ultegra FD-R8150 12spd. Force eTap AXS unprecedented side and upward visionCombining SHIMANO's new DI2 platform and the road incarnation of Hyperglide+, the Ultegra R8150 front derailleur shifts between chainrings with the fastest, most seamless action on the market. Features: 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.