Finally motorcyclists told where to go (and how to get there)

GPS is coming to a bike near you. Photo / Supplied

Although GPS units are handy in cars, they can be even more useful on a motorbike where the map must be put away between glances and indecision in traffic can be dangerous.

So in the coming months we'll trial a $720 "Strike" unit designed to clip to a tank-mounted sucker device or to a bar mount, powered via under-seat wiring that also acts as the aerial.

The unit itself easily unclips and can be used in a car, on a boat or by pedestrians, making it the most versatile we've tried to date.

So far it's been fitted only to cars, and we're still experimenting with the best way to mount it.

That means we've yet to use its ability to speak its directions through the Spark helmet intercom we also have on test.

With the mic attached to two rider helmets, along with the clip for the brain of the unit, we'll be able to ride up to a kilometre apart and still suggest a coffee-and-cake stop, demand a toilet break, or warn each other of spilled diesel and roaming dogs.

A bike-to-bike set costs $799, or $999 if you want a longer range; lower-priced bike-to-passenger kits are available, or you can buy solo kits to add individual riders.