The Mysterious Case of the Exploding Back Wheel
Despite better weather than we could have dreamed of, that was surprisingly tough. There was a brisk headwind to Malmesbury (nothing unusual there) but it was dry. And when the clouds cleared it was a great day, if a little cold (well, what do we expect in January?). I was fading somewhat after Cirencester, so urged Chris Beynon and A N Other (sorry, never got around to asking his name!) to press on without me. I passed them later, while Chris was fixing a deflation near Kineton. Seemed little point me hanging around - Chris was clearly in control, and I anticipated they'd catch me up before Chipping Campden, though to my surprise they didn't. I left Chippy with Pip and Ken (not of this parish yet, I think), and we made good progress until just short of Yarnton. When my back tyre exploded. It didn't just go down with a hiss, but exploded. I was not aware of hitting any pothole that might have caused it - indeed, at first I didn't even realise it was my tyre that had gone. We studied the tyre, but could see nothing to explain the problem, so I put a new tube in and set off again. 100 yds and "bang" again. So we checked tyre, and rim, rather more carefully. Still couldn't see an explanation. So, another new tube, try again. 100 yds and guess what? Yes, "bang". I only had one more tube, and there didn't seem much point in hearing that go pop, too, so Pip and Ken carried on, while I set out to walk the last 6 or 7 km. Could have been worse. But just before I reached the A44, Pip came back in his car, and I swapped my bike for his and cycled the last few km to PearTree. where we swapped the bikes back again.
So a rather slower finish than anticipated. Hearty thanks to Pip for taking the time to come back and help out, and to him and Ken for hanging around while I was trying to fix the problem. And as ever, to DavidB for organising it all.
Hopefully tomorrow when it is light, and I am not tired, I'll find the cause of the problem. Probably something simple and obvious (though not so obvious that Pip with his professional skills couldn't spot it)