BCM is short for Bocama - The lug manufacturer The pump boss on the back of the headtube is not a particularly common shape. Probably a British builder, certainly a frame of reasonable quality.
@Rik_Van_Looy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
BCM is short for Bocama - The lug manufacturer
The pump boss on the back of the headtube is not a particularly common shape.
Probably a British builder, certainly a frame of reasonable quality.