Topic: metric tubeless on Comstar in inches

[ORAZIO]

Hello
on my 1978 Hondina I have to change tires.
I found on the market a 110/90/19 front and a 130/90/17 rear.
The question is, can I avoid putting the inner tubes and using these tubeless tires on comstar wheels?
Orazio

[dave the welder]

my guess would be no. just put tubes in and ride

[jukku]

I use the Comstars with tubeless 100/90-19 and 130/90-17 on my ToMatic, without any problems.

[ORAZIO]

Well Jukku
I was what I wanted to know, my trusted tire dealer has no experience on these Comstars and I preferred to ask you more experts.
Do you know if there are problems with the assembly of automotive valves?
Thanks to those who express themselves through their experiences.
Orazio

[BenelliSEI]

I’ve used tubeless tires on Comstars and my Lester wheels too. For valve stems I used a competition style bolt-in unit. They are externally threaded, use a rubber gasket top and bottom, and fastened with a top nut. From memory, I may have had to open up the hole size a bit, but they worked really well.

[jukku]

I use bolt-in 90 degrees valves on the rear wheel because it is easier to check the pressure.

[ORAZIO]

Thank you
I think I can do as you recommended with the bolted valves too.
 good way to you all
Orazio