slang Inch:18 the tube is welded at

the tube is welded at the joint and has a vulcanized valve for maximum strength

you will get more rubber that helps seal after the needle

Your 3rd arm that holds the T-Lock and the tire in place during installation

TIP: Clean the surface where you are going to insert the needle into the tire to avoid dirt getting into the needle

the short part in the rim track and the groove around a spoke

slang Inch:18 the tube is welded atA solid tube produced by a solid tire manufacturer, the tube is welded at the joint and has a vulcanized valve for maximum strength, the thickness of the tube is well inside and mounted on the rim under the T Lock, the expansion is 30% of the shown stress test.