Shimano Ultegra Di2 RD-R8150 12-Speed Rear Derailleur 34T Max RGroup_A92165A3ED571868B24C7B832711C1A517043582 ensuring a fun and agile

ensuring a fun and agile ride

The Activa features 26” wheels

it ensures excellent air retention and reliability

pannier mounts and replaceable forged derailleur hanger

The metal band version includes an extra silicone QuickFit™ 26 watch band in the box

Shimano Ultegra Di2 RD-R8150 12-Speed Rear Derailleur 34T Max RGroup_A92165A3ED571868B24C7B832711C1A517043582 ensuring a fun and agileNow simplified with a single derailleur cage length, the new Shimano Ultegra Di2 RD R8150 12 Speed Rear Derailleur 34T Max packs Shimano's fastest, most precise shifting into a more approachable option. With Shimano's fastest, most accurate shifting, the new Shimano Ultegra Di2 RD R8150 12 Speed Rear Derailleur 34T Max is more versatile than ever thanks to a single cage length option that is compatible with 28 34T low sprockets. Features Shimano's