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Here are 5 things that you didn't know about aluminium (or aluminum) as a bike frame material. Subscribe to GCN: http://gcn.eu/SubscribeToGCN Get exclusive GCN gear in the GCN store! http://gcn.eu/BuyGCNKit_ Sign up to the GCN newsletter: http://gcn.eu/gcnnewsletter Aluminium is one of the most common bike frame materials. Although it has been superseded by carbon fiber at the top levels of the road bike market, it still commands a large market share and many brands – such as Trek and Canyon – continue to make high quality aluminium bike frames. Have you learnt something today? And, is it aluminum or aluminium? Let us know down in the comments. Watch more on GCN... Things you didn't know about carbon fiber ▶︎ http://gcn.eu/1Um3jL4 We tour SRAM's factory ▶︎ http://gcn.eu/1Y3ajle With thanks to Trek Bikes for permission to use their footage in this edit. Click here to see the full video: http://gcn.eu/1OarD66 Buy NEW GCN cycling kit, casual wear and accessories in the GCN Shop: http://gcn.eu/TheGCNShop Photos: © Bettiniphoto / http://www.bettiniphoto.net/ & ©Tim De Waele / http://www.tdwsport.com 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 GCN newsletter - http://gcn.eu/gcnnewsletter Leave us a comment below!