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9.4
2017 Bikes
Shimano Shimano Ultegra Di2 RD-6870 11-Speed Rear Derailleur From £164.99
Was From £220.00
Save From £55.01(25%)
Shimano Ultegra Di2 RD-6870 11-Speed Rear Derailleur
Shimano Ultegra Di2 RD-6870 11-Speed Rear Derailleur
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Ultegra Di2:

Shimano has brought Di2 to the wider market with Ultegra - the electric revolution is gaining momentum, play your part!

The Di2 rear derailleur's stepper motor operation guarantees smooth & reliable shifting that's far quicker and effortless than mechanical cables as the electrical wires not only eliminate issues caused by contaminates, corrosion and stretching shifts but also connect the derailleur to an intelligent computer brain which trims the derailleurs in unison to prevent mis-shifts, dropped gears and unwanted drivetrain noise.

High tolerance cold forged aluminium is used for the link plates and body construction to ensure the derailleur remains extremely light and durable while the sealed pulley bearings reduce friction and rotate silky smooth, increasing efficiency.

Model Numbers: RD-6870-SS (Short) / RD-6870-GS (Long)
Cassette Compatibility: 11 Speed
Maximum Sprocket: 28T / 12T (Short) 32T / 12T (Long)
Minimum Sprocket: 23T / 11T (Short) 28T / 11T (Long)
Maximum Front Difference: 16T ( Short) / 16T (Long)
Total Capacity: 33T (Short) / 37T (Long)

NB: Image for illustration purposes only

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