Description

It was not clear where the knock was coming from. It started as all mechanical noises do as just an irritating intrusion on your consciousness when pedalling down a nice quiet lane. The first inclination is to ignore it - it may go away if I pretend it's not there - but inevitably the noise becomes louder and eventually, sounding terminal, causing an emotion akin to panic. Time to call out the mechanic! Now, the cause of this knock was clear, as was its location - water