Shimano have lifted the lid on their new, all conquering Dura Ace groupset, the R9100. Simon Richardson talks us through the most important points.

Check out our video of the launch... http://gcn.eu/DuraAceLaunch

Subscribe to GCN: http://gcn.eu/SubscribeToGCN
Get exclusive GCN gear in the GCN store! http://gcn.eu/BuyGCNKit_

Shimano have released four versions of the new Dura Ace, mechanical shifting with rim brakes, electronic DI2 with rim brakes, and then two all new disc brake versions.

DA 9100 also breaks new ground with a power meter, Shimano's first, and one that's taken 10 years to develop.

Technology we are more familiar with also gets significant changes. Mechanical front and rear derailleurs also receive comprehensive redesigns.

Watch the video to find out more, and why not SHARE it too!

Our video from the NEW Shimano Dura Ace launch ▶︎ http://gcn.eu/DuraAceLaunch
More tech videos on GCN ▶︎ http://gcn.eu/BestGCNTech

Buy NEW GCN cycling kit, casual wear and accessories in the GCN Shop: http://gcn.eu/TheGCNShop

About GCN:

The Global Cycling Network puts you in the centre of the action: from the iconic climbs of Alpe D’Huez and Mont Ventoux to the cobbles of Flanders, everywhere there is road or pavé, world-class racing and pro riders, we will be there bringing you action, analysis and unparalleled access every week, every month, and every year. We show you how to be a better cyclist with our bike maintenance videos, tips for improving your cycling, cycling top tens, and not forgetting the weekly GCN Show. Join us on YouTube’s biggest and best cycling channel to get closer to the action and improve your riding!

Welcome to the Global Cycling Network | Inside cycling

Thanks to our sponsors:

Santini cycling kit: http://gcn.eu/1SFf8PV
KASK helmets: http://gcn.eu/1FrbcHK
fi’zi:k shoes and saddles: http://gcn.eu/1tsXI7S and http://gcn.eu/1KxBGd5
Topeak tools: http://gcn.eu/1Lc4HAj
Canyon bikes: http://gcn.eu/1Oge4gz
Muc-Off: http://gcn.eu/1XlT5Og
Science in Sport: http://gcn.eu/1GrXo6n
Ass Savers: http://gcn.eu/1XlTmkm
Orbea bikes: http://gcn.eu/1oks6GH
Trek Bicycles: http://gcn.eu/1RUwyGf
Vision wheels: http://gcn.eu/1qHTlMu
Zipp wheels: http://gcn.eu/1OcMUv5
Powertap: http://gcn.eu/1XlfT2p
power2max: http://gcn.eu/1sdoPva
Rotor: http://gcn.eu/1q3vtCo
Reynolds: http://gcn.eu/1JjCDVL

YouTube Channel - http://gcn.eu/gcnYT
Facebook - http://gcn.eu/gcnFb
Google+ - http://gcn.eu/gcnGPlus
Twitter - http://gcn.eu/gcnTW

Leave us a comment below!