clincher????

A clincher is a normal tire.

The alternative is a "tubular" which is glued to the rim.

I would say that is a 'normal' tire. It is a tyre that usually has a seperate inner tube. The tube holds the air and forces the tire beads against the rim.

Yeah, nowadays it is a poor name, as that type of tire has evolved to what we have today, but it has stuck.

The other type of tire is generally called 'tubeless' or 'sew-ups' and used on racing bikes. Used because they are supposed to save a very small amount of weight. As you sound like a beginner I would suggest staying away from a bike with that kind of wheels.

threaded said:

The other type of tire is generally called 'tubeless' or 'sew-ups' and used on racing bikes.

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There are some who prefer to race with clinchers.

janiejones said:

There are some who prefer to race with clinchers.

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The best clinchers have less rolling resistance than the best tubulars.

So what do you call a UST tubeless? Logically, it seems to be a subset of clincher tires.