Tube type Radials???

My friend bought a '36 Roadmaster that the former owner had installed Coker radial wide white tires(I think 670Rx15). The first day on the road he got two flats and later realized that the tires had tubes in them. On the outside of the tire it reads "Tube Type".

Just for the ride home from a service station, the mechanic had installed a tubeless stem, it made it home and held air well.

Do these tires have to have tubes and why?

Thanks

We had 4 16r650 Bridgestone light truck tyres fitted to our '39 - also fitted tubes because of uncertainty about perfect wheel condition. Had a flat with one about 4 years ago. The tube had been damaged. Tube was removed and is running as tubeless. If your wheels are in good order, go tubeless.

Gotcha, my real concern is why dies Coker put "tube type" on the sidewall if you could go tubeless?

Anyone?

Probably because the original mold was made that way...?

To be on the safe side I would call Coker and talk to them. I was told (I have tube type and tubes on my radials for the Jaguar) that the tube provides additional sidewall support to the tire so it does not roll off the rim. Remember our rims were made for bias tires, not radials. Not a good thing if you are rounding a corner at speed.

Let us know what you find out.

Spoke to Coker and they said the "Tube Type" lettering is not on there just for authenticity but there because a tube must be used in those tires.

Thanks for your help.

The paper tag which becomes vulcanized inside the tire causes abrasion against the tube which squirms inside the tire, and the tube now has a new rub-spot from which the air can exit -

Ask me about three (3) FLATS ON NEW TIRES AND TUBES WITHIN 120 MILES.

Re-installed the tires without tubes and never had another problem !!

Every time I replace a tube I coat it ( and the inside of the tyre ) with French chalk. It helps to resist chaffing between the two. It you have no French chalk you can always smuggle the wife's talcum powder.

Every time I replace a tube I coat it ( and the inside of the tyre ) with French chalk. It helps to resist chaffing between the two. It you have no French chalk you can always smuggle the wife's talcum powder.

I use SOAPSTONE powder. Do we know if it's another name for French chalk?

We always used talcum in Dad's tire shop. But then we also painted used tires with black enamel paint thinned with gasoline...made them look new.