Shimano RD-R8150 Rear Derailleur Ultegra Di2
Now simplified with a single derailleur cage length, the new 12-speed Shimano Ultegra R8150 rear derailleur packs their fastest, most precise shifting into a more approachable option that is more versatile than ever thanks to a single cage length option that is compatible with 30-34T low sprockets.
Ultegra – Rear Derailleur – Di2 – Shimano Shadow – 12-speed
Features:
• Fastest ever rear shifting, 58% faster than RD-R9150
• Compact design includes an integrated wireless unit, charger, and switch
• LED status indicator
• Battery indicator
• Pairing
• Adjust mode
• Wider range capacity
• Maximum low sprocket: 34T