Is there a sat Nav for bikes?

[Ticktockmy]

I use the Satmap GPS, really tough bit of kit, but has its faults, I found that in strong sunlight the screen become hard to read, sometime it takes a long time to acquire the satellites, but once locked on it is very accurate and reads well under trees and is accurate to about 3 mtr most of the time.

Currently comes packaged with the full OS landranger 1:50000 of mainland Britain and fully supported with 1:25000 maps. And they do a bike package as well.

http://www.satmap.co.uk