Carbon-fibre bicycles are amazing. The advanced composites used to shape those carbon-fibre frames are terrifically light and incredibly strong.
A curious feature of the bicycle market has been the enduring appeal of steel. Especially, custom steel bicycles. Built by individual fabricators, often in sheds, garages or historic industrial buildings.
To make a carbon-fibre bicycle you need masterful technicians and advanced moulding and curing tools. It is not something that can be done by a single person business.