World Of Riders is the most realistic racing game where you can have a full motorcycle racing experience.
Starting with level 1, you can proceed to the higher levels by attending to the competitions and by completing assigned tasks. So you can get credits and buy new motorcycles, or you can use those credits to upgrade power and other specs of existing motorcycle.
There are 12 different stages and 2 race tracks in the game. Among them, there are stages in night mode, in rainy and snowy weather.
There are 11 different motorcycle options categorized by engine power. You can proceed to higher levels in career mode, get credits in time trail mode.

More details on the official game page of World Of Riders ...