Current use: The centimeter, like the meter, is used in all sorts of applications worldwide (in countries that have undergone metrication) in instances where a smaller denomination of the meter is required. Height is commonly measured in centimeters outside of countries like the United States. turn. Definition: This is the standard way of defining a screw thread. example: 7/8-18 UNS 2A 2 starts 7/8: Basic outside diameter. Can be a fractions, screw number

Definition: An inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement. An inch was defined to be equivalent to exactly 25.4 millimeters in 1959. There are 12 inches in a foot and 36 inches in a yard. pitch diameter the external screw thread. Tolerances: Allowance: Fundamental deviation of the basic size, applies only to 1A and 2A external It is often easier to work with simplified fractions. As such, fraction solutions are commonly expressed in their simplified forms. 220 the decimal would then be 0.05, and so on. Beyond this, converting fractions into decimals requires the operation of long division.When a is a fraction, this essentially involves exchanging the position of the numerator and the denominator. The reciprocal of the fraction 3 There are almost 200 different sizes of motorcycle tyres out there. However, we estimate that 90% of motorcycles produced today use just 25 of these sizes. Scooterwise, the 16-incher is a common fitment. Bikes like the Honda SH125i and SH300i run a 16-inch front and rear. The NSC110 Vision runs a 80/90/16 front and a 14-inch rear. An alternative method for finding a common denominator is to determine the least common multiple (LCM) for the denominators, then add or subtract the numerators as one would an integer. Using the least common multiple can be more efficient and is more likely to result in a fraction in simplified form. In the example above, the denominators were 4, 6, and 2. The least common multiple is the first shared multiple of these three numbers. Multiples of 2: 2, 4, 6, 8 10, 12 Most bikes also have a 17-inch rear rim and the only real exception to this are bikes such as some Harley-Davidsons and a few of the older, more niche offerings. Adventure bikes tend to come with a 19-inch front tyre and proper off-road bikes (of the extreme versions of the Adventure bikes) are fitted with a 21-inch front rim but all Adventure bikes come with a 17-inch rear tyre.

Results from case studies are not predictive of results in other cases. Results in other cases may vary.classes Major/Pitch/Minor diameters: The difference between the maximum and minimum diameters. Length of engagement: Basic length of thread engagement that is defined by a combination Yamaha Niken runs a 17″ rear but two 15″ fronts. The 15 inch tyres you put on a Tmax 500 are H rated and so you can’t run these on the Niken as it needs a V-rated tyre. Bridgestone are the OE tyre supplier for the Niken and at the moment the only tyre you can run is the Bridgestone A41 and while other tyres will fit you won’t get a matching set of 15 and 17s. indicates the aspect ratio (between height and width, i.e. it’s 70% as tall as it is wide in this case 84mm) diameter of the screw. Crest flat: Maximum and minimum size of the flat at tip of each thread pitch. Crest radius max: The maximum radius that will fit on the minimum crest size. Root flat: Maximum and minimum flats at bottom of "V" that will allow the greatest

screw thread (This series is not supported) Class tolerances:(If unsure, use class 2A for external or 2B for internal) Tolerance classes 1A, 2A and 3A apply to external thread Tolerance classes 1B, 2B and 3B apply to internal threads. The class tolerance determines the size of the gap between the pitch diameters of Scooters are slightly different and they range across a larger amount of tyre sizes due to the fact they come in far more shapes and sizes, often with the front and rear rims in different diameters.diameter of a Screw or the biggest internal diameter of a threaded hole. NOTE: The size of the hexagon of a bolt or nut has no relevance when defining