| Tokyo, April 10, 1998 --- Honda Motor Co., Ltd. has announced the launch of the VFR road sports bike, which will go on sale on April 20. The exhaust system on this liquid-cooled 4-cycle DOHC V4 4-cylinder 800cc engine has been modified to comply with new Japanese motorcycle exhaust emission regulations for Class II motorcycles (250cc displacement or greater) due to be enforced from October 1999.
The VFR has been designed as an all-round sports tourer. It is equally at
home whether negotiating city streets, winding country roads, or cruising on the
highway. The engine is based on that used in the RVF/RC45 which is a frequent
entrant in Superbike races worldwide. The stroke has been lengthened for the VFR
to increase the engine's displacement.
This high-performance engine has been modified further to include an exhaust
gas purification system, which consists of an electronically controlled fuel-injection
system (PGM-FI), newly developed by Honda exclusively for motorcycles, together
with an exhaust air-injection system.
The PGM-FI system uses a specifically designed electronic control unit (ECU)
to regulate the air-fuel mixture to the engine. By constantly changing the mixture
to make it the most suitable for the conditions at any particular instant, the
system reduces the amount of pollutants generated during the combustion process.
The exhaust air-injection system channels air through the exhaust ports to
mix with unburned hydrocarbons (HCs) and carbon monoxide (CO) in the exhaust gas
mixture. This helps to oxidize excess HCs and CO within the exhaust pipe, thereby
reducing the amounts of these pollutants that are emitted.
Honda expects the new 800cc VFR road bike, with its superior performance profile
and its compliance with Japanese motorcycle exhaust emission regulations, to prove
popular among a wide range of motorcycle enthusiasts.
Honda VFR
Domestic annual sales
target: 500 units
Main features of the VFR
Torquey high-performance V4 4-cylinder engine based on the RVF/RC45
Created by extending the stroke in the popular Superbike RVF/RC45 racing engine
by 2 mm to increase the displacement to 781cc, the VFR engine is more powerful
and compact, making it ideal for a wide range of uses from touring to racing.
A newly developed PGM-FI system changes the air-fuel mixture to make it the
most suitable for the conditions at any instant, maximizing the power and boosting
throttle response.
A new dual radiator not only increases the effectiveness of the cooling system,
but also allows more freedom in the engine arrangement. The new V4 engine is closer
to the front wheel, a layout much closer to the ideal for this engine type.
Pivotless twin tube frame provides superior handling and enhances safety
The new VFR incorporates a pivotless frame like the Honda Firestorm which
creates an excellent balance between high strength and rigidity. Combined with
the Pro-Arm (single-sided swingarm) suspension, this improves cornering and high-speed
performance.
Dual-combined brake system for extra stability when braking
A further advance on the braking system used on the CBR1100XX Super Blackbird
export model - the front brake lever also operates the rear brake for extra stability
when braking - is just what is needed on a super sports tourer.
Fairing design gives extra protection from the wind
The new full-fairing design not only affords maximum protection from the wind,
but also gives the VFR a uniquely individual styling, conveying an aggressive
yet luxurious look.
Body color: Italian Red
Main specifications:
| Model |
VFR |
| Type |
Honda BC-RC46 |
| Length x width x height |
(m) |
2.095x0.735x1.190 |
| Wheelbase |
(m) |
1.440 |
| Ground clearance |
(m) |
0.125 |
| Seat height |
(m) |
0.805 |
Curb weight/
dry weight |
(kg) |
233/209 |
| No. of riders |
(person) |
2 |
| Minimum turning radius |
(m) |
3.1 |
| Engine type |
RC46E liquid-cooled 4-cycle DOHC
4-valve 4-cylinder 90o v-twin |
| Displacement |
(cm3) |
781 |
| Bore/stroke |
(mm) |
72.0x48.0 |
| Compression ratio |
11.6 |
| Maximum power output |
(PS/rpm) |
80/9,500 |
| Maximum torque |
(kgm/rpm) |
6.9/7,000 |
Fuel economy (km/l)
[60 km/h test on flat ground] |
27.0 |
| Fuel injection |
electronic control (Honda PGM-FI) |
| Starter |
self-starter type |
| Ignition |
full-transistor battery ignition |
| Lubrication |
forced pressure and wet sump |
| Oil capacity |
(l) |
3.8 |
| Fuel tank capacity |
(l) |
21 |
| Clutch |
coil spring |
| Transmission |
6-speed return |
| Gear ratios |
1st gear |
2.846 |
| 2nd gear |
2.062 |
| 3rd gear |
1.631 |
| 4th gear |
1.333 |
| 5th gear |
1.153 |
| 6th gear |
1.035 |
| Drive ratios (primary/final) |
1.939/2.529 |
| Rake (degrees)/trail (mm) |
25o30' /95 |
| Tire sizes |
Front |
120/70 ZR17(58W) |
| Rear |
180/55 ZR17(73W) |
| Brakes |
Front |
hydraulic twin disc
3-piston calipers |
dual combined brake system |
| Rear |
hydraulic disc
3-piston calipers |
| Suspension |
Front |
telescopic |
| Rear |
swingarm |
| Frame type |
backbone |
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