While I was browsing the Cyclepedia app (see previous post), I came across a reference to the Rohloff Speedhub. It’s a gear-changing mechanism that I have never seen but which has fascinated me since I watched Mark Beaumont’s documentary about cycling the Americas. He used one. It is, apparently, the modern-day equivalent of the Sturmey-Archer system that most of us probably used on those childhood bikes of the 1970s. But hang on, stop! A little search on the Internet tells me that they are still at it. You can pay your money and take your pick. The video here from Rohloff makes fascinating viewing. I think I want one… Now, did that make a suitable 3000th Tweet? I think so.