Motoring

List caravan and motorhome kit with the figures buyers check: A-measurement, ramp rating per wheel, hook-up cable spec, regulator pressure and date. Plus why gas cylinders and leisure batteries cannot go by Royal Mail, towing mirror law and shipping bulky items.

The legal checks a part-worn tyre must pass before you list it, how to quote tread and the date code, the wheel figures buyers need for fitment, a grading scale for kerbed and refurbished alloys, and the courier size limits that rule out most tyres for standard post.

What to decide before you sell detailing products under your own name: duties for own-brand chemicals, tax registration, insurance, a starter range and the full cost per bottle.

A practical guide to selling motorcycle helmets, visors and riding clothing in the UK: the Road Traffic Act offence for unapproved helmets and visors, the standards GOV.UK lists, honest helmet history, protection labels, measurements and packing.

A practical guide for UK sellers of used car parts: part numbers and fitment, honest condition reports, the legal rules for part-worn tyres and brake linings, what Royal Mail will and will not carry, and your duties as a private seller or trader.

How to describe fit, photograph and list car accessories online in the UK, plus product marking, number plates, delivery and returns.

What to check before you list car detailing chemicals and kit online in the UK: labels, safety data sheets, carrier rules and returns.