note to self: if one must have bikes with different sized tires, at least try to keep them within 3mm of each other, so that you can use spare tubes interchangeably.

Replaced the flat tire encountered on Monday night and rode home via the river as legs were still feeling knackered from the heatstroke-inducing 150 mile ride on Sunday.

apparently, the stem needs tightening as the handlebars have a tendency to drift, which is ... alarming.