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* To table of contents 1990


Two wheels product news
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1990 February 20th
Selling two cycle super sport motorcycle "HONDA NSR250R SP which" the magnesium make wheel and the dry multiple disc clutches standard is equipped

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Honda Motor Co., Ltd. (Inc.), high-level new technology is adopted and very much in popular two cycle super sport motorcycle "HONDA NSR250R", standard equipped the front of the magnesium make of the dry multiple disc clutches and the light weight high quality & rear wheel and front of the attenuation power adjustment mechanism attaching & rear suspension etc."HONDA NSR250RSP"limitation (2 and 500 units) is sold from April 2nd.

When the dry multiple disc clutches of high efficiency are adopted to the engine, anew, the friction is decreased, improvement of operation feeling is assured simultaneously, power transmission efficiency and the like when departing is raised. The underside, adopting the magnesium make wheel of light weight for the front rear wheel anew. ハイクォリティ which administers the finishing which is superior in coating film characteristic in addition to the high corrosion-resistant characteristic material and the die-cast manufacturing method which obtains high density, we have become the thing, with substantial reduction of unsprung weight, centralization of inertial mass is raised more.

HONDA NSR250R SP

-Sales planning(country) 2 and 500 units (limitation)
-Manufacturer desired retail price 719 and 000 Yen
(As for speed warning light equipped car, 10 and 000 increases in yen value.)
(The Hokkaido Okinawa, 9 and 000 increases in yen value, in addition excludes the part remote island.)
(Consumer tax is not included.)



It extends anew in front suspension in addition to the adjustment mechanism of the initial load, adopting the attenuation power adjustment mechanism side. It extends to the rear and, equipping the aluminum make reservoir tank attaching rear cushion which can adjust the attenuation power side and shrinkage side respectively independently. Coupled with the maneuverability where we make the taste of the rider and the delicate adjustment which is suited for travelling condition possible, the based car have and is superior, being more pliant, it actualizes light operation feeling.

Leading particular Alias name NSR250R SP
Type MC21
Total length × full × total height (m) 1.975×0.655×1.060
Wheel base (m) 1.340
Roadspace (m) 0.135
Seat high (m) 0.770
Vehicle weight/dry weight (kg) 152/133
Riding in a car fixed capacity (person) 2
Fuel economy (km/L) 50km/h fixed area travelling test value 30.2
Minimum turning radius (m) 2.9
Engine type MC16E (water cooling two cycle V type 2 cylinder)
Total cubic displacement (cm3) 249
Inside diameter × distance (mm) 54×54.5
Compression ratio 7.4
The highest output (PS/rpm) 45/9,500
Largest torque (kgm/rpm) 3.7/8,500
Carburetor type TA22
Starting system Kick system
Ignition device type CDI type battery ignition
Lubricating system Separate oiling system (force splash combined use) formula
Lube capacity (L) 2.0
Fuel tank capacity (L) 16
Clutch type Dry multiple plate coil springs
Transmission type Regular gearing type 6 step return
Change gear ratio 1st gear 2.846
Change gear ratio 2nd gear 2.000
Change gear ratio 3rd gear 1.578
Change gear ratio 4th gear 1.333
Change gear ratio 5 speed 1.190
Change gear ratio 6 speed 1.083
Reduction gear ratio (primary /2 next) 2.360/2.666
Caster (degree)/trail (mm) 23°15 ' /87
Before the tire size 110/70R17 54H
After the tire size 150/60R17 66H
Before the brake type Hydraulic type double disk
After the brake type Hydraulic type disk
Before the suspension system Telescopic system
After the suspension system Swing arm system (プロリンク)
Frame type Diamond
_________________
Poul
"If Life Gets Boring, Risk It!"
MC21SE, KISS box
MC21SP, HRC box, racing loom