A transmission system for a two-wheeled vehicle

The present subject matter discloses an internal combustion (IC) engine (101) of a vehicle (100) for efficient and automatic power transmission. The internal combustion (IC) engine (101) comprising asingle-speed gear-train mechanism (411, 412) and a detachable additional gearbox (200). The additional gearbox (200) comprises a secondary gear-train mechanism (416a, 417) which selectively combines with the single-speed gear-train mechanism (411, 412) during a pre-determined operating range of the IC engine (101). The above-mentioned system through the additional gearbox (200) automatically varies the torque based on the speed of the internal combustion (IC) engine (101). Further, the present invention provides ease of serviceability and disassembly. Ultimately, the performance of the IC engine (101) improves through the present subject matter. 本主题公开了一种用于高效和自动动力传动的车辆(100)的内燃(IC)发动机(101)。内燃(IC)发动机(101)包括单速齿轮系机构(411，412)和可拆卸的额外齿轮箱(200)。额外齿轮箱(200)包括次级齿轮系机构(416a，417)，其在IC发动机(101)的预定操作范围内选择性地与单速齿轮系机构(411，412)结合。基于内燃(I