What's The Difference Between BCD Sizes? | GCN Tech Clinic

Published on May 9th 2018


Jon is back for the GCN Tech Clinic solving all your tech related problems. This week we're talking bolt circle diameters, it can be tricky working out what chainrings work with what BCDs. Jon cuts through the jargon to let you know what's what! Subscribe: http://gcntech.co/subscribetogcntech The GCN Shop: http://gcntech.co/3q We've also got questions covering Shimano 105 shifters, whether soaking your chain in degreaser is bad for it and more on Jon's favourite topic, the factory lube coating on a new chain. Keep your questions coming in with #askgcntech, we love hearing from you! 👇 If you'd like to contribute captions and video info in your language, here's the link 👍 http://gcntech.co/3r Watch more on GCN Tech... 📹 Maintenance Mistakes http://gcntech.co/mistakesweallmake 📹 GCN Tech Show 18 http://gcntech.co/show18 Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/ Brought to you by the world’s biggest cycling channel, the Global Cycling Network (GCN), GCN Tech goes deeper into the bikes, kit and technology stories that matter. GCN Tech is utterly obsessed with seeking out and showcasing the best in bikes, tech, products and upgrades. Everywhere. Every week. From news and rumours, first ride exclusives, how-tos, the weekly GCN Tech Show, pro bikes, set-up tips and more, we geek out over the tiny details that can make the big differences to you. With years of racing and industry expertise, we also bring you instructive maintenance videos to hone your mechanical skills, as well as behind the scenes factory tours and in-depth analysis of kit chosen by the pro peloton to keep your finger on the pulse of cycling’s latest technological innovations. Engage with us every week on the channel and across social media – we’re here to answer every question you’ve got on cycling tech. Facebook - http://gcntech.co/gcntechfb Instagram - http://gcntech.co/gcntechinsta Twitter - http://gcntech.co/gcntechtwee