Gearbox for Active mopeds. The gearbox is an assembly of gears and shafts that changes the gear ratio between the engine and the wheel.
Signs of wear: gears pop out, noise and whining, crunching when shifting. The condition of the gears is checked during disassembly; they are usually replaced as a set. Before buying, compare the part with the old one for appearance and mounting dimensions.
Country of origin: China.
