Hmm. No sooner do I sort out my mysterious on-again off-again puncture, and make a passing comment about the bike needing to find new and entertaining ways to go wrong (from my mouth to God’s ear and all that), when it does just that. Shortly after that post, my bike developed what I can only describe as a percussion section – not just a click or a creak, but a whole symphony of clicks, rattles, bangs and pops which would start up when I got on the bike and continue to a greater or lesser extent regardless of whether I’m pedalling or not, or even sitting in the saddle or not, until I get off the bike and try to investigate the cause, whereupon it would revert to complete silence. This was beyond irritating, not to mention embarrassing, especially in town, although at least it completely eliminates the ‘bell or no bell’ dilemma when coming up behind pedestrians on a shared path – long before I need to warn them of my approach, they have already turned to see what on earth was coming up behind them sounding like a free-form jazz percussion solo.
Given that I can’t reproduce the noise except when I’m actually riding it, I’m a bit stuck as to what might be behind this racket, unless there’s a mouse-sized samba drumming band concealed in the frame somewhere. The local bike shop guy – who was treated to an impromptu performance when I passed him while he was out walking his dog on his lunch break – had no suggestions either (at least when I bring it in I won’t have to persuade him that it’s not some figment of my imagination). It does seem to happen slightly less when I’m pedalling uphill, or putting in more than my normal effort – going uphill and into a headwind seemed to hush it almost completely – suggesting something related to the saddle and/or loading on the frame.
And so it went on until today when I got on the bike to head into town, musing about other matters. I was almost at the outskirts when I noticed a disturbing new noise: the sound of silence. After a whole week of pure annoyance, the noise had gone. And remained gone, all the rest of the way into town and all the way home again. I’m fairly certain that self-sorting rattles are no more common than self-repairing punctures so I regard this as a sinister development (while welcoming the quiet). My suspicion is that the noise was due to something that was breaking and which is now completely broken, and I can only hope that it wasn’t something safety critical. The alternative is that the bike is simply possessed. Either seems equally likely at this point…