Now simplified with a single cage length, the new Shimano ULTEGRA R8150 12-speed rear derailleur packs our fastest, most precise shifting into a more accessible option.
More versatile than ever: thanks to a single cage length option compatible with 28-34T low sprockets.
Compact design that includes an integrated wireless unit, charger and switch.
LED status indicator. Battery indicator.
Pairing. setting mode etc. Greater range capability. Low sprocket max: 34T.