Garmin Zumo 660 Sat Nav, £385
Miles covered/time: 12,000/18 months
What's good: I would be lost without my sat nav (literally) and the fact that I can use the Garmin Zumo 660 on both my bike and in my car is an added bonus – nobody really wants to shell out for two separate satnavs, do they?
The 660 is a rugged, easy to read, waterproof system (which I’ve tested to the limit), with a wide, glove-friendly screen. The joy of the display is its simplicity, making it both safe and easy to use. This unit has become the benchmark for motorcycle satnavs, in my book. I especially value the 'lane assist' graphics and excellent Bluetooth facility.
What's not: I get the feeling that sometimes it’s more intelligent than its user. Not in a dystopian, Asimovian sense, more that I need a serious crash course in working out its finer details, and learning to use everything it has to offer. And next to £400 is still a lot of money to pay for the pleasure of knowing which way to turn.