The zumo 550 is without doubt an excellent option if you need a GPS unit for your motorcycle or scooter.

A sleek, slim design combined with the latest in features including the ability to transmit sound via a built-in FM transmitter, the compact nuvi 760 is definitely a winner.

The R600 is a solid, but not outstanding GPS unit. Its large display and simple user interface are positives, but the large, bulky size, combined with a lack of text-to-speech technology are downsides.