Honda CB900F
The Honda CB 900 F is a motorcycle by the Japanese manufacturer Honda, which was presented at the IFMA in Cologne in 1978 and 1979 came on the market. The vehicle was developed for Europe, the launch in the United States was only 1981. In Europe, the CB 900 F carried the additional title Bol d'Or.
Prehistory
The Bol d'Or is a long distance race over 24 hours, the Honda during the years 1972 and 1973 for the first time, won in 1974 and 1975 but lost to Kawasaki Z1. In road transport, Honda had let the Kawasaki Z, but on the track took the work on the challenge. From 1976 to 1978 Honda won the Bol d'Or three times in a row, with four cylinders 941-998 cm3, which were based on the engine of the CB 750 Four and were unlike any commercially available at that time not only two camshafts, 16 valves but also - as the CB 900 F.
These racing motorcycles were spectacular, but almost roadworthy, as was experienced in 1976. The sportiest venal Honda was the older Honda CB 750 Four with only one camshaft, and the top model was the Honda Gold Wing that struck Europe in accidents at high speed. View Honda had originally acquired with everyday use technology from racing, the Honda CB 450
Technology
The CB 900 F was a complete redesign parallel to the Honda CBX and later became the CB 1100 F and the CB 1100 R of the year 1980.
With less piston stroke and smaller cylinders than the CB 900 F CB 750 F there were with the same chassis. This motor with lower crankshaft and without oil cooler also drives the CB at 750 K, the framework is designed to be weaker.
The engine of the CB 900 F is also a milestone in retrospect. Not because of brute power, but because he up to high speeds loose by pulling from low revs and excellent average speeds. The two overhead camshafts operate the 16 valves via bucket tappets. The engine delivers 70 kW (95 PS), of which in the contemporary tests only 84 hp could be remeasured, ³ from a displacement of 901 cm. The machine weight is 260 kg. The top speed is 213 km / h
Development
Both the CB 900 F SC01 and the CB 750 F RC04 were built until the mid-1980s and subjected to regular facelift in the chassis. The CB900 F SC01 Bol d'Or followed the CB900 F SC09 Bol d'Or to the front and rear instead of the used prior to the combination of five-spoke ComStar rims with next to a rubber-mounted engine mount with 18 " ComStar rims in Boomerang Design 19 was "front and 18 " rear. because the brakes with Nissin Einkolbenschwimmsätteln proved to be too weak in practice, 1981, the calipers were replaced as part of the facelift with twin piston floating calipers from the same manufacturer.
The models SC01, SC09 and RC04 were also delivered as F2 version with full fairing. The peculiarity of this panel was that she was at the bottom of just behind the cylinder bank and as Greaves formed in the event of a frontal collision, directing the driver of the accident obstacle should.
The Bol d'Or series was continued with the CB 1100 R SC11 Super Bol d'Or. Here is a rectangular tube was installed in contrast to previous models. The sportiest models of the Bol d'Or family were the mid-1980s, the CB 1100 R SC05 with a style similar to the F2 fairing and CB1100 R SC08 with a completely redesigned full fairing.
Notably, in the United States offered Honda engines of the model in various " choppers " to. The CB 900 C SC04 models and CB 1000 C SC10 were offered exclusively for the North American market. The key difference to all other variants, is the secondary drive via cardan shaft and the additional transmission gear boxes, which provides a total of 10 gears available in combination with the regular five-speed gearbox.
Successor
In 1984 Honda introduced the sporty four-cylinder engine, the 1000 F VF and VF 1000 R V- engine and significant problems. The next sports bike from Honda had another engine with approximately 900 cm3, continued in 1992 a new standard for lightweight and called Honda CBR 900 RR Fireblade.
From 1993, Honda brought the naked bike CB 1000 with water cooling on the market, which was for Honda CB 1300 Super Bol d'Or.