A person who repairs bicycles is commonly referred to as a "bike mechanic" or a "bicycle mechanic." These professionals are trained to diagnose and fix various issues with bicycles, including repairing brakes, gears, chains, and wheels. Bike mechanics often work in bike shops or repair centers, utilizing specialized tools and knowledge of bicycle components to ensure bikes are in proper working condition.
A bicycle where one person is sitting ahead of the other is called a tandem.
A locksmith
cobbler
A person who repairs chimneys is called a chimney sweep. They are responsible for cleaning and maintaining chimneys to ensure they function safely and efficiently. In addition to cleaning, they may also inspect and repair chimney structures.
mechanic
glazier
A person who builds and repairs chimneys is called a chimney sweep or chimney technician. These professionals ensure that chimneys are safe and functioning properly, often conducting inspections, cleanings, and repairs. In some regions, they may also be referred to as chimney specialists.
A person who repairs shoes is called a cobbler. Cobblers specialize in fixing footwear by mending, cleaning, and restoring shoes to extend their life. They may also provide services like resoling, patching, and polishing.
A person who installs repairs replaces and dismantles the machinery and heavy equipment used in almost very industry is called a machinist.
The name of someone who repairs machinery is a machanic.
Watchmaker Also, an heurologist
A bicycle seat is typically called a saddle.