Hey look no gear cables at all!, the new Di2 series Dura-Ace offers an all new look with seamless gear shifts that are better than any other system "Period". The shift is fast, precise every single time and trimming the front derailleur is a thing of the past, the system does it automatically.
DUAL CONTROL LEVERS
• Switch: super stress-free operation. Simply press the button – similar operation as a mechanical system
• Better access to brake lever from upper side with closer pivot: smooth braking operation
• Flight Deck compatible: wireless speed sensor on the bracket; integrated operating buttons used without changing hand positions
REAR DERAILLEUR
• Programmed motion: quicker and smoother shifting with less chain drop
• Saver (fuse) function: inner structure protected from any heavy impact
• Electronic adjustment: easily adjustable even when riding
FRONT DERAILLEUR
• Quicker front shifting: smooth, stress-free riding with automatic linear response
• Programmed motion: very precise shifting with less chain drop
• Auto trim: automatic chain guide movement in response to the gear position of the rear derailleur, no more concentration on trimming when riding
BATTERY PACK
• Rechargeable
• Easy mount to the frame: fits any road bike and can easily be removed for charging
• Extremely reliable: field tested and proved through various riding conditions and all weather
• High performance: Li-lon battery, 7.4 V for longer life
CRANKSET
• Thin-walled crank: forged aluminium crank saves weight
• Hollow chainring: saves weight while maintaining strength
• New teeth design: for better chain contact and high efficiency
power transfer
BRAKES
• Enhanced brake arch proportion: more linear response
• Lower cable stopper: better cable routing and reduced cable friction
• New compound brake shoe: reduced wear-out of 50% under wet
Price includes battery, charger, fittings and cabling
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