On your bike, take the wrong route? (3,4)
I believe the answer is:
get lost
I believe this is a double definition.
'on your bike' is the first definition.
(both are rude ways of telling someone to go away)
'take the wrong route?' is the second definition.
(Other definitions for get lost that I've seen before include "stop interfering" , "On your way" , "Might bad map readers" , "without the map?" , "stay away" .)