Shimano’s electronic road racing components DURA-ACE with Di2 technology (Digital Integrated Intelligence) have been awarded with the German iF Product Design Award 2009.
"The Dura Ace Di2 (7970 series) was awarded in the category “ Leisure/Lifestyle”, based upon its innovation, functionality and design level. DURA-ACE 7970 series will be available in the market from spring 2009."
We shot a video demonstration of the Di2 technology at Eurobike earlier this year and very impressive it was too in theory and practice - on a turbo. We haven't been able to test it yet in anger (we made do with a UK Exclusive on the new, and lighter, mechanical Dura Ace 7900) it's fair to say though that those who have tested it haven't been uniformly impressed. The big gripe is that it isn't wireless, and some have expressed doubts about its longevity in real world condidtions – Shimano on the other hand can point to the fact that they had pros training on it all last winter with no issues in terms of battery life or durability.
Whatever, we could spend all day watching the auto trim function on the front mech adjusting itself… possibly not the best reason to buy an electronic groupset but then again not the worst reason either.
Dura Ace Di2 will be available in the UK from January 2009 and we look forward to testing it.
Here's what Shimano have to say about it…
Revolutionary electronic shifting system for road racing bicycles
DURA-ACE 7970 series consists of Dual Control Levers, electronically operated front and rear derailleurs and a battery kit. The other components, like crankset, cassette sprocket, chain and brakes, are equal to those of the new mechanical DURA-ACE 7900 series.
The advantages are clear immediately for everybody who rides a bike with Dura-Ace Di2 for the first time: Shifting becomes so much easier and effortless, just tipping a shift button is sufficient to move the chain to the requested sprocket or chainring. Biggest improvement is shifting the front derailleur. No more power is needed to move the shifting lever. Just push the button and it works, even under high load. The shift action is also faster since there is no delay due to mechanical friction.
Other advantages of using electronics: no more contaminated or stretched cables. Input is output. No matter if the system is new or has been used for a few years, the function will always be the same. Push the button and it works. Every time and in all circumstances. The components have already proven their capabilities in competition by top professional cyclists.
When shifting the rear derailleur, the front derailleur automatically adjusts itself which eliminates the need to trim for once and for all. Further benefits can be found in electronic shifters especially for time trial and triathlon usage. These products eliminate the need to change hand position for shifting. The rider is able to change gears at the base-bar as well as at the bar extensions. The result is saving time and a better concentration on the ride.
For more info check out www.dura-ace.com
Or (if conceeding we just can't get all the motorist to do this all the time, or there will never be "good enough" until zero) ... just don't have...
I understand the use of tiles for visually impaired and they are even more slippery, but no cyclists are expected to ride on them. These red bricks...
I have visited Guernsey and my wife goes there a few times a year for work. This act of premeditated violence shocks me. There are quite a lot of...
You could well be right. Personally, I think Avonvale Rd is just a disaster for having two way traffic. So many drivers think the traffic calming...
Although Muller Rd isn't great to cycle on (the north end, anyhow), it's certainly not the worst. I'm definitely in the "brave and bold cyclist" at...
Meh, he said "about" 75psi which is fair enough - ETRTO use 5 bar (72.5psi) as the limit, so 75psi is well within the error margin of the gauge on...
Norwich Airport is best part of 5miles from Norwich station, it's on a bypass/ringroad I wouldn't cycle it, though it's attempts at cycle infra...
Loads of cycling content on mastodon. Just need to follow the BikeTooter hashtag. I'm on Bluesky as well. Do not miss xitter one bit.
I quite like some of these and already have a few. I like the cactus holder and the build-your-own bike. Maybe even the cushion. I have a bicycle...
So close to a hole in one and they didnt find a short cut https://www.bbc.co.uk/news/articles/cx2pg1qyqd0o