Shimano Ultegra RD-R8150 Di2 2x12-Speed Rear Derailleur SRAM It's fully adjustable to allow

It's fully adjustable to allow you to easily optimize for and switch between standing

the right electrolyte profile

and poor design

Trekking Weight 765 g Material High resistant hollow aluminium 6061 structure Mounting Fixtures Wheel Ø 26''

Shimano Ultegra RD-R8150 Di2 2x12-Speed Rear Derailleur SRAM It's fully adjustable to allowSHIMANO ULTEGRA Di2 Rear derailleur SHIMANO SHADOW RD 2x12 speed RD R8150 Now 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