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Is This What Will Ultimately Replace 125 GP Bikes ? - Malcolm - 27-10-2010 Honda Press Release What was on our minds during the development of new CBR? It was to realize an attractive quarter model that can meet the demands of the times to come and provide customers all over the world with joy and at an affordable price. What we aimed at was the 'Sport Quarter for One World, CBR250R.' Our passion is embodied in various aspects of this motorcycle such as its displacement, frame size, driving stability, and riding position. These features were optimized for riders of all kinds, from beginners to experienced riders, so that they can feel the fun of maneuvering, which is fundamental to motorcycle riding. A sporty feel that riders get the moment they mount and ride the motorcycle is pursued without sacrificing ease of use, in search of the optimum balance between the two. Nimble acceleration that can be felt the moment the throttle is opened, a feel of smooth rev-up in the high-speed range, linear vibration characteristics that do not discomfort riders, and a variety of equipment features such as a rear grip that provides a sense of comfort when riding in tandem-with this list of features, we are confident that customers will be satisfied without exception. Power Unit The CBR250R engine was developed by aiming at a global single-cylinder engine that transcends regions, while being sporty and eco-friendly at the same time, with a look ahead at the next generation. What should a next-generation liquid-cooled 250cc single-cylinder engine that is also ecofriendly be like? What should the output characteristics of a 250cc single-cylinder sport bike be when the comfort and the ease of handling that can satisfy customers all over the world are taken into account? How can an engine that is light and compact and yet has a high-quality feel be able to support the ride as the rider wants it? With these questions in mind and aiming at the output characteristics that would realize a light and sporty maneuverability in the complete vehicle while retaining the advantages of fuel economy and ease of handling of conventional single-cylinder engines, we have developed a new 250cc single-cylinder engine that is light and compact and runs smoothly not just at low rpm but also in the high rpm range. Technical Specification Sales name CBR250R Model type Honda MC41 Overall length × Overall width × Overall height (m) 2.035 × 0.720 × 1.125 Wheelbase (m) 1.370 Ground clearance (m) 0.145 Seat height (m) 0.780 Curb weight (kg) 161 (STD) 165 (ABS) Riding capacity (No. of people) 2 Minimum turning radius (m) 2.5 Engine type CS250RE, liquid-cooled 4-stroke DOHC single cylinder Displacement (cm³) 249 Bore × Stroke (mm) 76.0 × 55.0 Compression ratio 10.7 Fuel supply system Programmed fuel injection system (PGM-FI) Starter type Self-starter Ignition type Full-transistor battery ignition Lubricating type Wet sump Fuel tank capacity (L) 13 Clutch type Wet multiplate with coil springs Transmission type Constant mesh 6-speed return Transmission gear ratio 1-speed 3.333 2-speed 2.118 3-speed 1.571 4-speed 1.304 5-speed 1.115 6-speed 0.963 Reduction gear ratio (primary, secondary) 2.808 / 2.714 Caster angle/Trail (mm) 25º00´/ 95 Tire size Front 110/70-17M/C Rear 140/70-17M/C Brake type Front Hydraulic disk Rear Hydraulic disk Suspension type Front Telescopic Rear Swing arm (Pro-link suspension system) Frame type Diamond