Shimano 7970 Dura-Ace Di2 Rear Derailleur

Product Code: 116420
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Product Description

Digital Integrated Intelligence or Di2: with programmed automatic motion at the touch of a switch the Dura-Ace Di2 rear derailleur is quick, smooth and effortless, making for unmatched drivetrain efficiency.
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• Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift
• The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts
• Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts
• 11-27T wide gear ratio capacity will cater for compact setups as well as the traditional road double
• Full carbon fibre inner and outer pulley plates enhance rigidity and reduce weight
• Titanium B axle bolt for further weight savings
• High tolerance cold forged aluminium link plates and body construction is extremely light and durable
• Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting
• Pulleys are made of tough DuPont Zytel for longer life and less chain noise
• 10-speed Dura-Ace Di2 compatible
• Weight is 225 grams