When I was a kid I bought a cheap mountain bike bicycle from Wallmart equivalent in Europe. Getting out with friends meant having to go back home after the fir

When I was a kid I bought a cheap mountain bike bicycle from Wallmart equivalent in Europe. Getting out with friends meant having to go back home after the first jump (usually less than a kilometer away) because the chain derailed, the brake will block and so many horror histories. When I went to the bikes workshop to fix it,just looking at the weak frame they refused telling me that if they did fix it, it will break again and be responsible. So I had to fix it myself. In practice it meant replacing the entire bicycle part by part. I bought an expensive bicycle later that never derailed or blocked or anything in its entire life using it every day. Sometimes expensive gear can save you an enormous amount of time.