A loose stem on your bicycle isn’t just annoying, it can also be dangerous and Peter Sagan knows it.
With 30 km to go during his winning ride in Paris-Roubaix, Sagan went back to his team car and got a key to make an adjustment to his stem. Once he’s got the right tool in hand, the world champion proceeded to tighten up the bolts on his stem while rolling at high speed.
