Pro cyclists adopt many different positions so that they can descend as quickly as possible. Subscribe to GCN on YouTube: gcn.eu/gcnsubs You will have seen professional cyclists attempting to get as low as possible so that they are as aerodynamic and as fast as possible when they descend. Whilst we certainly don't recommend trying these positions on the open road, we decided to find out just how effective they are. We tried three different positions and compared time over an 800 meter stretch of road. We used a standard aero position - one that you might adopt if you were descending - on the drops and in the saddle. Then we adopted the 'tuck' that many riders adopt in search of speed. Hands on the tops and seated on the top tube - don't try this one... Finally, we tried the 'Human Saddlebag'. This is the position that the late Marco Pantani used for descending - arms stretched and backside off the saddle. Watch to find out which position is the fastest! Music: Maribou State - Larks Rise: gcn.eu/1pspxys About GCN: The Global Cycling Network puts you in the centre of the action: from the iconic summit of the Stelvio to the epic trails of Fort William, Scotland, everywhere there is pavé or dirt, world-class racing, and pro riders, we will be there bringing you all the action, essential analysis and unparalleled access every week, every month, and every year. Welcome to the Global Cycling Network | Inside cycling Youtube Channel - gcn.eu/gcnYT Facebook - gcn.eu/gcnFb Google+ - gcn.eu/gcnGPlus Twitter - gcn.eu/gcnTW Leave us a comment below!