Honda CB250RS


The Honda CB250RS is a 250 cc motorcycle designed for road use. It was produced until the mid-1980s. It has a high-compression four-stroke, four-valve, air-cooled, single-cylinder engine, which was an upgrade of the engine built for the earlier XL250S trail bike. The RS is known for its slim build, with a dry weight of only 128 kg, and nimble handling. The engine featured counter rotating balancers, which reduced vibration and allowed a lighter frame. Further weight savings were achieved by making the engine a stressed component. Early models were kick-started, while later Deluxe models came with electric start and different paintwork. The bike has a front disc brake and rear drum brake, and while it had only a single-cylinder, it had twin exhausts; one for each port.
The engine generates modest power and achieves a top speed of around 136 km/h or 84 mph. Early models produced a claimed 26 hp, while later models claimed 33 hp. It claimed fuel efficiency of up to 70 mpg. Known issues include failed ignition coils and CDIs. Lack of battery cranking power can be an issue with the RS-D if an inadequate replacement battery is fitted.