475K views · 3.7K reactions | Cycling fast uphill is the often considered to be the ultimate test of a rider's strength on the bike, climbs are where the biggest races are often decided and its where no amount of spending on gear can make up for a lack of strength in your legs! So what really marks out a world class climber? We've brought a beginner, an amateur and a pro to the bottom of a local climb to find out! | Global Cycling Network | Facebook