New Shimano Dura Ace 11 speed for 2013
Yes it's true, another cog in the mix! Shimano is due to launch a new line for Dura Ace in August 2012. The next generation Dura Ace group will feature a new 11 speed drivetrain. Shimano has labeled this new group as Dura-Ace 9000.
Dura Ace 9000 11 speed will be available in electronic and mechanical versions. We have been told that the electronic group will have a similar wiring setup as the Ultegra electronic kits. This will make the internal wiring installation, set up and troubleshooting much easier. Those of you that have installed the 7900 Dura Ace electronic kits will find that Dura Ace 9000 will be as simple as “plug and play.”
What else is different? Our sources say that the Dura Ace 9000 crankset will be a four arm spider as opposed to the five arm spider found on the current soon to be previous Dura Ace 7900 cranks. After extensive lab testing, Shimano determined that the middle(third) arm on the spider has no load or stress during pedal rotation. This allows them to remove unnecessary weight and lighten the new crankset.
Other details we were able to dig up about Shimano's Dura-Ace group:
- The group weight is claimed to be 1908 grams
- Smaller and more egronomic shift levers and hoods for mechanical
- Wider freehub body spacing for 11 speed cassettes but still compatible with 10 speed
- One chainring bolt configuration (BCD) for different size rings
- Broader range of cassette options
Check back soon for the complete facts and specifications about Shimano's new Dura Ace 9000 11 speed group!