Shimano Ultegra Di2 RD-R8050 11s rear derailleur

The RD-R8050 will help you maintain race concentration through intuitive shift control. The new low-profile design of Shimano Shadow RD increases its shift stability and gives the rear derailleur a sleek and integrated appearance. Race endurance is guaranteed, through the optimized slant angle. The wide compatibility of two specific rear derailleurs (GS and SS) for cassettes 11-25T to 11-30T and 11-28T to 11-34T will secure a smooth ride in even the highest and steepest mountain areas.

Features

• Shimano synchronized shift.
• Low profile rear derailleur design.
• Shimano Shadow RD.
• Maintains compact and smooth appearance.
• Short Cage (RD-SS): compatible with cassette from 11-25T to 11-30T.
• Mid Cage (RD-GS): compatible with cassette from 11-28T to 11-34T.
• Maximum front difference: 16T
• Real weight: 239 g (SS), 249 g (GS).

Technology

Synchro Shift
First introduced in XTR Di2 M9050, Shimano’s innovative Synchro Shift is now available with Dura-Ace R9150. Available as a programmable Di2 option, Synchro Shift creates an intuitive experience on the bike through Synchronised front and rear shifting that can be custom programmed by riders.
In addition to traditional “Full” Synchro Shift, riders can optionally select “Semi” Synchro Shift. This intuitive new mode automatically reacts when the rider shifts from one chainring to another, automatically shifting the rear derailleur to minimise the gear step, thus preserving the rider’s rhythm.

Shimano D-Fly SM-EWW01 not compatible.
Shimano battery SM-BTR2-1  not compatible.

Notes regarding Packaging
The product may be delivered in a plain box or LordGun packaging.
More information on the packaging of this article.