As nouns the difference between biker and bilker
is that biker
is a person who rides a bicycle while bilker
is a cheat, especially one who evades payment.
Other Comparisons: What's the difference?
A person who rides a bicycle.
A person whose lifestyle is centered on motorcycles, sometimes a member of an outlaw motorcycle club.
* (1) bikie , motorcyclist
* (2) cyclist
A cheat, especially one who evades payment