The Aiyumo Nassau 250 is a classic motorcycle that has been around since the early 2000s. It is a lightweight, mid-sized motorcycle that is perfect for both novice and experienced riders alike. The Nassau 250 is powered by a single-cylinder, four-stroke, air-cooled engine that produces a maximum power output of 18.5 kW (25 hp) at 8,500 rpm and a maximum torque of 22.5 Nm (16.6 ft-lb) at 6,500 rpm. The engine is mated to a five-speed manual transmission and is capable of reaching a top speed of 125 km/h (78 mph).

The Nassau 250 has a steel frame and a single-sided swingarm. It is equipped with a telescopic fork up front and a monoshock at the rear. The bike has a wheelbase of 1,370 mm (54 in) and a seat height of 790 mm (31 in). The Nassau 250 also has a fuel tank capacity of 12.5 liters (3.3 US gal) and a dry weight of 145 kg (320 lb). It is equipped with a single disc brake up front and a drum brake at the rear.

The Nassau 250 is a great option for those looking for a reliable, lightweight, and affordable motorcycle. It has a classic look and feel that is sure to turn heads. The bike is also easy to maintain and is capable of reaching respectable speeds. With its classic styling and reliable performance, the Nassau 250 is sure to be a great choice for any rider.