 Motorcycle Product News
 March 03, 1989
2-Cycle Super Sport bikes with built-in high efficiency and a dry multi-plate clutch and lightweight magnesium wheels "Honda NSR250R SP" released
Honda Motor Co., the two cycles of a very popular super sport bikes everywhere adopt advanced new technologies, "Honda NSR250R" to the dry multi-plate clutch and a highly efficient, high quality, lightweight magnesium before In addition to the wheel after suspension as standard equipped with front and rear damping force adjusting mechanism can be obtained for driving conditions , "Honda NSR250R SP" themarket from April 1 to.
NSR250R SP engines is used to dry high-efficiency multi-plate clutch. At the same time to reduce friction by going through the oil structure, improve the operation of the feeling that more efficient power transmission, especially when moving off. Suspension employs a lightweight magnesium wheels front and rear wheels. Materials and high corrosion resistance, in addition to obtaining high-density die-casting process has been treated with a high quality film with excellent surface. As a result, achieving a weight reduction of approximately 1.5kg front and rear wheels. Improving traceability along the road by reducing unsprung weight, which further increased the centralization of inertial mass.
NSR250R SP
| ● Sales Plan (annual domestic) | 3,000 |
| ● MSRP | 689,000 yen |
(Excluding consumption tax.)
(car speed warning lights mounted high $ 100.)
(Okinawa, Hokkaido, 9,000 yen appreciation, and some other restrictions apply.) |
|
Front suspension is in addition to preload adjustment mechanism, the damping force adjustment mechanism adopted new growth. The rear is equipped with a rear cushion with aluminum reservoir damping force can be adjusted independently of each side and compression damping force new growth, which enables fine adjustment for rider preference or riding conditions , combined with excellent dynamic performance with the base model, which delivers more light steering feel.
Body color, is competing in a world-class road race GP250cc "Our Nomoto Honda Racing Team" has adopted a two-tone Ross White / Terra image of a silver color design. |
Main Specifications
| Type | MC18 |
| Length × Width × Height (m) | 1.980 × 0.650 × 1.060 |
| Axial distance (m) | 1.345 |
| Ground clearance (m) | 0.135 |
| Seat Height (m) | 0.780 |
| Dry weight / vehicle weight (kg) | 150/132 |
| Seating capacity (persons) | Two |
| Fuel economy (km / l) the constant speed test 50km / h | 30.2 |
| Minimum turning radius (m) | 2.9 |
| Engine Type | MC16E (case reed valve two-cylinder 90 degree V-2 cycle piston valve combined with water cooling) |
| Total displacement (cm3) | 249 |
| Bore × stroke (mm) | 54.0 × 54.5 |
| Compression ratio | 7.3 |
| Maximum output (PS / rpm) | 45 / 9,500 |
| Maximum torque (kg-m/rpm) | 3.8 / 8,000 |
| Carburetor Model | TA21 |
| Starting method | Kick |
| Type ignition system | PGM-CDI type battery ignition |
| Lubricating method | Lubricated separation (engine), pumping and splash formula (Mission) |
| Lubricating oil capacity (l) | 2.0 (0.8 in Mission) |
| Fuel tank capacity (l) | 16 |
| Clutch | Dry multi-plate coil spring |
| Transmission format | Constant mesh 6-speed return |
| The first speed gear ratio | 2.846 |
| 2-speed gear ratio | 2.000 |
| 3-speed gear ratio | 1.631 |
| 4-speed transmission ratio | 1.368 |
| 5-speed gear ratio | 1.250 |
| 6 speed gear ratio | 1.173 |
| Reduction ratio (primary / secondary) | 2.360/2.800 |
| Caster (degrees) / Trail (mm) | 23 ° 15 '/ 87 |
| Tire size before | 110/70 R17 54H |
| After the tire size | 150/60 R18 67H |
| Braking before | Hydraulic double disc (disc floating plate) |
| After Braking | Hydraulic disc (floating caliber) |
| Suspension system prior | Telescopic |
| After the suspension system | Swing arm (Pro-Link) |
| Frame format | Diamond |
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