Like many cyclists, I regard a cycle computer as an essential gadget. Today’s versions are a far cry from the mechanical mile-counters of the past.

Cordless computers are an obvious further improvement – if they worked. But they’re horribly prone to interference. I’ve endured a Cateye Cordless for two years, and have cursed its inability to record speed and distance accurately. (For all I know it might just cut the mustard as a clock.) The speed display continually flickers between the real speed and an imaginary one – which is invariably far slower.

The last straw came on a century (100 mile) ride. The Cateye Cordless underestimated the distance by 2 miles. As a result, I’ve consigned the miscreant to the darkest corner of the garage and replaced it with a corded computer.