Bikers guided by hi-tech helmet
23 September 2013 Last updated at 02:58 BST
Car drivers are used to seeing satellite navigation mounted on windscreens or dashboards but motorcyclists have had no such luxury - until now.
The BBC's North America technology correspondent Richard Taylor met one company developing an in-helmet navigation system, and asked if it is any safer than a regular system attached to the motorbike itself.
You can follow Richard @RichTaylorBBC.