THERE IS NO NEED FOR TUBELESS WIRE WHEELS ON CLASSIC CARS!
Wire wheels were fitted to some production cars up until the early 1970's. It was only right at the end of the 1960's that low profile tyres (such as 205/70R15) were even invented. No cars before the 1970's were fitted with tyres with a profile of less than 70%. All tyres with a profile of 70% or taller can run with tubes (even if the tyres are specified as 'tubeless' on the side wall, classic car tyres (eg 165R15, 165/80R15 or 185/70R15) can still run with tubes).
· All cars up until the 1970's can fit tubes in their tyres.
· All cars up until 1970 that fitted wire wheels had inner tubes.
· There is no need to have wire wheels that can be run without tubes.
Use good quality tyres such as Michelin or Pirelli Cinturato on your classic car fit good quality inner tubes on well built wheels and you will not have problems.
We have repeatedly come across problems with the new tubeless system on wire wheels (see images and the film.). The silicon can be moved which leads to air leaking round the spokes. We do not feel it is a proper engineering solution, to resolve a problem, that is not there in the first place. Borrani do not make tubeless wheels for classic cars, we recommend fitting good quality inner tubes with Borrani wire wheels (or any other wire wheel for that matter).
You do not want to a modern low profile tyre like a 195/65r15 on a wire wheel for a classic car; because you should not fit tubes in low profile tyres (below 70%). Also a 195/65R15 is a totally inappropriate tyre for a classic car. Tyres like these are designed to compliment modern cars steering and suspension, and will spoil the handling of a pre-1970 car anyway.