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Stealth S1 Dotty rubber outsole
This material cools your skin when it becomes moist
including reflectivity for added safety
Incorporating comfort and key fit features
With Phoenix Dock on your bike
Shimano Ultegra FD-R8150 2 x 12spd Braze-on Front Derailleur ismbcc12 Stealth S1 Dotty rubber outsoleMore 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 the fastest, most seamless action on the market. Fastest ever front shifting, 45% faster than FD R9150 Smaller, sleeker, lighter Weight 116g Top gear teeth capacity: 50 54T