THE intricacies of modern-day tyres and inflation packs will be chewed over by Swansea councillors this week.
Members of the licensing committee are being asked to allow officers to grant hackney carriage and private hire vehicles a licence if the vehicle in question is not manufactured with a spare wheel, as long as all other criteria are met.
The current guidelines are that licensed vehicles must carry a spare wheel at all times.
But council officers are getting more applications from owners of newer vehicles which have various spare tyre alternatives.
A report going before the committee on Friday says: "Many vehicles are now supplied with a tyre sealant and tyre inflation packs, run flat tyres or space saving non-standard spare tyre or a skinny spare as manufacturers look for different ways of space or weight saving ideas in new models of vehicle.
"The tyre sealant and tyre inflation packs are used to temporarily seal a puncture and are not used to repair the tyre itself.
"The sealant works by externally injecting the sealant and compressed air through the tyre valve. The pack seals and inflates punctured tyres instantly allowing the proprietor to drive to the nearest tyre repair centre where the tyre can be removed from the wheel and checked for internal damage before it is repaired or replaced."