Honda XRV750
The Honda XRV 750 Africa Twin [ æfrɪkə twɪn ] is an off-road motorcycle of the Japanese manufacturer Honda, which was produced from 1990 to 2000. The enduro is structurally derived from the Honda XL 600V Transalp, a development of Honda XRV 650 Africa Twin and is driven by an increased displacement two-cylinder engine of the Honda NT 650 Hawk.
- 3.1 Driving
- 3.2 Suspension
- 3.3 Cooling
History
In response to the motorsport success of the BMW R 80 GS the early 1980s, the Honda Racing Corporation ( HRC) was commissioned in 1984 with the development of a suitable desert, off-road motorcycle for the Paris-Dakar Rally. In 1985, the NXR was presented 750 V ³ with a water-cooled two-cylinder with 779 cm of displacement and a power rating of 48 kW (65 hp). This bike won from 1986 to 1989 four times in a row, the Paris-Dakar rally and was therefore also called the " Queen of Africa".
The Africa Twin XRV 650 RD03 with manufacturer code is not based on the factory rally motorcycle NXR 750, but has taken over after the success of the NXR in the Rally Paris -Dakar in 1987 their appearance. Despite a weight of 220 kg, the enduro was moving well both on-road and off-road. In Germany was reduced by throttling from 57 hp to 50 hp and sold the bike at a price of 10,570 DM because of the favorable type class performance. The top speed is 165 km / h with a speed of 7,640 min -1. The aluminum rims have steel spokes and front and rear are fitted with cross-ply tires. RD03 the delayed forward on a disc brake with a dual-piston caliper, and a rear disc brake having a Einkolbensattel. The bike was available until 1991 only in the combination ( white-red- blue) of the Honda Racing Corporation ( HRC).
Model variants of the XRV 750
RD04 1990-1992
1990 the successor RD04 engine capacity from 647 to 742 cc has been extended, so that the power from 57 to 59 hp and the torque increased from 55 to 61 Nm. Compared to the previous model had the RD04 an oil cooler, a reinforced frame with extended swingarm, a modified panel, a double disc brake system from 1992 and a digital trip meter with the name tripmaster. The larger engine and the upgrade increased the weight of 220 to 238 kg, but also took the top speed of 165 to 174 km / h.
RD07 1993-1995
The Africa Twin 1993 was extensively revised and offered in a derestricted version with 60 hp. The air filter is mounted above the carburetor to draw less from the front wheel dust raised, thereby increasing the fording depth.
The framework was revised and shortened the rear swing arm, so that the seat height of 88 decreased to 86 cm. The caliper front and rear have been modified to facilitate the replacement of the brake pads. A scaled to 23 liter tank reduced the total weight to 230 kg, and the range to 300 km at an average fuel consumption of 6.2 liters of regular petrol per 100 km.
Overall, the tour was RD07 USEFULLY compared to their predecessors, but not sporty.
RD07a 1996-2000
The RD07a is the last stage of evolution of the Africa Twin, which was made to stop production in 2000. The former two - pulse and ignition coils were replaced by one that supplies both spark plugs with power. The models sold from 2001 to 2003 were collected from stockpiles or sold off.
The discussion in the press successor XRV 850 with an output of 80 hp was not realized by Honda, instead appeared in 1999, the far more powerful and 40 kg heavier Honda XL 1000 V Varadero. Honda sold 72091 units in Europe until the end of 2003, of which 20 823 in Germany.
Model comparison
Specifications
Drive
The liquid-cooled two-cylinder engine produced from 742 cc capacity is rated at 44 kW (60 hp) and a maximum torque of 66.7 Nm at a speed of 5400 min -1. The four-cycle engine is mounted transversely in the frame, so that the two cylinders of the V-type engine in an angle of 52 ° to the crankshaft are provided in a row. Each cylinder head has a chain driven camshaft that controls an outlet and two inlet valves. The two cylinders have a bore diameter of 81 mm in diameter, the piston has a stroke of 72 mm and a compression ratio of 9:1.
The unit comprising motor and transmission block is separated vertically and is made of an aluminum alloy. The crankshaft transmits its torque via gears to a multi- disc wet clutch on the input shaft of the transmission. The transmission has five gears and is connected by a chain to the rear wheel. The bike accelerates in 5.0 seconds from 0 to 100 km / h and reaches a top speed of 178 km / h
Landing gear
The chassis consists of a single loop tubular steel frame with double top bar of rectangular profiles and a classic rear frame. The two inner tubes of the front forks have a diameter of 43 mm and a spring travel of 230 mm. They are connected by a fork bridge on the front wheel. The shock absorber of the rear wheel swing arm of aluminum has a deflection system and is adjustable in both the spring bias and in the attenuation.
Cooling
The motor is cooled with a mixture of water and anti-freeze agent that dissipates the heat of combustion of the two cylinders with two radiators to the ambient air. A driven by the oil pump coolant pump feeds the hot coolant through a thermostatic valve for radiators and back, with the thermostat fully opens only from an operating temperature of 95 ° C. As additional cooling for coolant temperatures above 100 ° C of the right radiator has a cooling fan.
Reviews
"As the series offshoot of the legendary factory rally racer, the massive enduro motorcycles conquered with versatility and reliability of many fans. The V2 engine is nearly indestructible, the rugged chassis is good for brisk highway driving as well as off-road stretches on long-distance travel - comfort and space for luggage there's also plenty ".
"If you are looking for a good bike for the road and for off-road rides, Honda Africa Twin can compete as a starter machine well with others in its class. It offers a decent performance with a top speed of 174 km / h It brings the blood might not be too much to boil, can be at 160 km / h but go for a ride pleasant. "
" The accuracy is outstanding, the suspension remains stable at all times, and quiet, and the lean angle tends to infinity. The Africa Twin is a born Big Twin - fright, their sedate engine and chassis design makes it easy even for beginners to fully on and enjoyable curve swing to concentrate. For screwdrivers and hobbyists the other hand, Honda is rather disappointing. You just will not get broken. 80,000 km without irgenwelche problems are loose inside. If anything, speedometer, steering head bearings or the fuel pump must be replaced at most times. "
"Robust, cultured, with handy, but stable trail running gear on asphalt and gravel. [ ... ] The transmission shifts smoothly, the brakes anchor effectively. The reliable three-valve V2 knows except his sometimes prone fuel pump no weaknesses, without large subsidies good for astronomical mileage, runs smoothly, and also withstands bad fuel. "
"Close Return liked the old RD 04 not so much. Its focus was far above, the wide 24 liter tank and the extreme seat height increased to inexperienced drivers the feeling of insecurity when the load came into the tilting times. [ ... ] On brute performance, use one waited in vain just for the new Africa Twin as the old. For fans pointed performance characteristics of the 750 was fortunately still nothing. Long-distance travelers are more on the same turbine power output, and it was and is the Africa Twin unbeatable. Between 3000 and 7500 rev / min, the engine pulls through with no performance hit and completely uniform. "