2009 Shimano Dura-Ace Electric – part 2
You can read our original post on this here, but figured there’s enough information floating around out there to warrant a followup. Ã‚Â First, the “official” group shot from Shimano:
Now, we’ve found the weights of the components and a few rider reviews, quotes and miscellaneous info, after the break (read more).
The complete Di2 group will still be approximately 113g lighter than the current 7800 groupset – but around 68g heavier than the standard 7900 mechanical group, according to Shimano. A wired set up was chosen over wireless, which would have required multiple batteries and added weight (speaking of the battery, it should be good for over 600 miles per charge and fully recharge in about 1.5 hours).
- STI Dual Control levers (ST-7970) Ã¢â‚¬â€œ 255g/pair
- Front Derailleur ( FD-7970) Ã¢â‚¬â€œ 124g
- Rear Derailleur (RD-7970)Ã‚Â Ã¢â‚¬â€œ 225g
- Battery (SM-BT79) Ã¢â‚¬â€œ 68g
- STI Dual Control levers – Ã‚Â£349.99/pair
- Rear derailleur – Ã‚Â£349.99
- Front derailleur – Ã‚Â£249.99
- Cable set – Ã‚Â£99.99
- Battery – Ã‚Â£49.99
- Charger – Ã‚Â£49.99
- Chainset (Dura Ace FC7900) – Ã‚Â£319.99
- Cassette – Ã‚Â£129.99