This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One who rides a bicycle or a motorbike.

n. A motorcyclist, especially a member of a motorcycle gang.

n. A person who rides a bicycle.

n. A person whose lifestyle is centered on motorcycles, sometimes a member of an outlaw motorcycle club.

"When you hear the term biker babes, the images that fill your mind may include bleach blond hair and the scant use of finely crafted leather bikinis."

bikie   

byker    hiker    piker    spiker    striker   

bikers    topless    well-tanned    busty    jeepney    motorcycle    skier    fleece-lined    physio    triathlete