| Motocross events were created generally to | | | | strokes of engines up to different cc. |
| check out the bikes and were famous as motor | | | | 2. Next is AMA Motocross Championship, a race |
| trial events in UK. Nowadays these are the | | | | for about thirty minutes. The riders have to |
| sporting events. These events are organised on | | | | cover twelve rounds of twelve long tracks in two |
| grand scale. | | | | laps. It is major series of the United States, which |
| The tracks for these events are generally | | | | was sanctioned by the American Motorcyclist |
| off-road or on terrain fields. These are usually | | | | Association since 1972.There are two classes |
| arranged on cross country sites, therefore are | | | | used in this race; 250 motocross class and 450 |
| motocross events. The bikes designed for these | | | | motocross class. These classes work on two |
| events are light in weight with special features. | | | | stoke and four stroke machines respectively. |
| There are three major competitions organised for | | | | 3. The third championship is Motocross Des |
| these races are as follows: | | | | Nations. This is an annually organised race |
| 1. FIM Motocross World Championship, is a | | | | participated by three riders. All of them represent |
| worldwide events series, which was inaugurated in | | | | their own nations. This race has been in trend |
| 1957 using 500cc engine. Federation Internationale | | | | since 194. In this race three classes - MX1, MX2, |
| de Motocyclisme is a governing body for these | | | | and 'open' run against each other. The riders with |
| championships in Europe. The duration of the race | | | | their own class of bikes have to cover three |
| is for thirty-five minutes, a bit longer with two | | | | rounds against the other two classes. And the |
| laps. And the rider has to cover sixteen rounds in | | | | total scores of three laps covered in minimum |
| the decided time. Later due to change in | | | | time is calculated for declaration of the winners. |
| technology, new advanced engines came into use. | | | | Earlier these events were organised to test the |
| Now three distinct classes are used, MX1, MX2, | | | | new bikes. But now new bikes are designed and |
| and MX3. These classes of engines allow different | | | | launched for these championships. |