MAYBE - , frame size has nothing to do with tire size. Style does, and if its a mountain bike, it will not work with a 27 (road racing) wheel and tire. Brakes will not fit.
yes smaller profile tire
81.7 inches
Circumference = Pi x Diameter, C = 3.14 x 26 = 81.64 inches
Yes, but 305/30/26 is the biggest tire you can run without rubbing and to run that tire you have to take a hammer to the backside of the front fender wells.
2" lift kit depending on your tire
That all depends on the size of the wheel. A 26-inch bicycle tire rolls 6ft 10in in one revolution. A 7-ft tractor tire rolls 22ft in one revolution
The idea when doing this is to install a tire with a shorter sidewall. It's the overall diameter of the tire you are looking to match. If your stock set up has a tire with an overall diameter of say 26" then you'll want to find a tire with the same overall diameter in the 20" version. However, you aren't going to have much sidewall left on the tire with the 5" change you're making. Watch out for potholes or those rims are toast. Tire Rack online allows you to shop tires by size and you can click on the specs. The diameter will be listed there. Keep plugging in tire sizes until you find the ones that match.
sq weight of 1 inch glass * 26 times..
Bicycles have pretty standard tire sizes from 16, 18, 20, 24, 26, 29 inch. There may be some special sizes out there. 26 is pretty standard for adult bikes.
26 is really 26 inch, a reference to the wheel size. 26" is a rather confusing size, with at least 4 non-compatible wheel sizes lurking behind the same denomination. You're better off using the ETRTO value, where 559 mm is the same as the most common/modern version of the 26" category. 700 is an old French sizing system originally based on the size of the inflated tire. It worked OK as long as there was only one tire width available, but failed miserably when manufacturers introduce tires of different width. It needs the company of a letter to become unambiguous. Today, most common road bike size is 700C, which in ETRTO means 622 mm So the short answer is that a 26" tire has a Bead Seat Diameter of 559 mm while a 700C tire has Bead Seat Diameter of 622 mm.
26 inch on the driver side, 20 inch passenger.26 inch on the driver side, 20 inch passenger.