Bilenky Cycle Works is an American handmade bicycle manufacturer located in Philadelphia, Pennsylvania.

Founded by Stephen Bilenky, a member of the musical group The Notekillers, in 1983, BCW fabricates both frames and complete bicycles, ranging from TIG welded track bikes to intricately lugged tandems.

BCW has been featured in many bicycle publications,[1] art shows,[2] and is a frequent winner of national awards.

Bilenky sponsors the Junkyard Cyclocross Race and co-sponsors the Philly Bike Expo.

In 2021, Bilenky was commissioned by the United States government to manufacture a custom-built bicycle as a diplomatic gift presented to UK Prime Minister Boris Johnson at the 47th G7 summit.