Bio: Paul from Mapdec Cycle Works. Dedicated bicycle service centre in the English Lake District, with a YouTube channel of the same name.

Bio: 50 years of bicycle mechanics, mechanical engineering degree, and 30 years focusing on ball bearing designs for bicycles.

Bio: Owner, fitter, fabricator at Magnolia Cycles.

Bio: Just formed my own company servicing and maintaining all forms of bikes, former Marine Engineer designing propulsion systems for ships