Step into the bottom bracket standard maze with Simon Richardson. Don't worry, he knows his way around. 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 BB30 PF30 Octalink Hollowtech The world of bottom bracket standards is about as complicated as it gets in cycling. Simon explains all in this video. Watch more on GCN... How to change a threaded bottom bracket ▶︎ http://gcn.eu/1VfBdFW How to resolve bottom bracket creaks ▶︎ http://gcn.eu/1TuyjIR Buy NEW GCN cycling kit, casual wear and accessories in the GCN Shop: http://gcn.eu/TheGCNShop Music (links to Spotify) Matthew Corbett - Get Up: http://gcn.eu/1ZXYXhf Paul Joseph Smith - Take it Slow: http://gcn.eu/1T1x3Mx 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 Bicycle: http://gcn.eu/1RUwyGf Vision wheels: http://gcn.eu/1qHTlMu Zipp wheels: http://gcn.eu/1OcMUv5 YouTube Channel - http://gcn.eu/gcnYT Facebook - http://gcn.e