Shimano Ultegra RX RD-RX805 Di2 11-Speed Rear Derailleur

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The Shimano RD-RX805 Ultegra Di2 11-Speed Rear Derailleur introduces a clutch to their iconic electric road derailleur, delivering improved shift performance and stabilization. With the prevalence of off-road and multi-surface riding, the Ultegra RX uses the Chain Stabilizer mechanism adopted from mountain bike design, now adapted and tuned for road drivetrains. With an on/off switch, the RX805 puts the control at your fingertips enabling you to engage the clutch before a gravel ride, or turn it off when you're out for intervals.

The Shimano RD-RX805 Ultegra Di2 11-Speed Rear Derailleur is compatible with all current road Dual Control Di2 levers.

Features:

• Clutch chain stabilizer mechanism adopted from MTB design.
• Shimano Shadow RD Plus technology.
• 11-Speed Di2 rear derailleur compatible with current road Dual Control Di2 levers.
• Max front difference: 16t.
• Total capacity: 39t.
• Low sprocket min/max: 28t/34t.
• Top sprocket min/max: 11t/12t.
• Firmware update by E-Tube Project.
• Weight: 280g.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.