SHIMANO Di2 Ultegra RD-R8150 rear derailleur 12S chainring Designed for exceptional ergonomics and

Designed for exceptional ergonomics and braking control

featuring the new lustrous Pearl White graphics package

NEW Maxima Plush Dynamic Suspension Lube reduces friction

Install and pair via the reliable and familiar standard AXS set-up and pairing procedure

unprecedented strength

SHIMANO Di2 Ultegra RD-R8150 rear derailleur 12S chainring Designed for exceptional ergonomics andNow simplified with a single derailleur cage length, the new 12 speed Shimano ULTEGRA R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option. With our fastest, most accurate shifting, the new 12 speed ULTEGRA R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28 34T low sprockets FEATURES Our fastest ever rear shifting, 58% faster than RD R9150Compact