Mini tach ?
 

Looking for a mini tach. , something that will disappear on the handlebars ...

Since I want small , I'm assuming it will have to be LED type.

Looking for a size of just a inch or two,
easy to install, and cheap.
Any ideas. ?

Try J&P Cycles

Well, I don't remember what kind of bike you have but since all I have are catalogs for Harley's here is what I found.

Drag Specialties has a couple of mini tachs that measure 2.4" dia. x 2.25" H. ranging from $84.95 to $122.95. Or you can check out Dakota Digital. They have a number of electronic instruments but they are not on the cheap side. :(

Hope this helps you out.

try custom chrome
 

My new mini tach is from custom chrome

Ya , saw the Dakota's, they are kinda what I wanted, but to pricy,
don't know why digital should be so expensive ?

another option would be to buy the mirrors with the gauges in them but they are expensive too.