50cc Roadraces

Start of the Dutch TT, 50cc, 1973 : Harold Bartol(15), Theo Timmer(22), Henk van Kessel(23) Ton Kooijman(26), Jan de Vries(21), Nico Polane(25), Bruno Kneubuehler(19), Cees van Dongen(28), Herbert Rittberger(6), John Koster(31), Nigel Stone(13) and Ulrich Graf(18). This year would end in a second worldchampionship for Jan de Vries!

Kreidler roadracer 1961. Beautiful racebike, frame built by the owner, Wolfgang Gedlich. He was a succesfull private racer begin 60's. The picture shows the recently restored bike. (Click picture to enlarge)

The 1969 Kreidler/van Veen racing team. Three famous Kreidler racing motor-cyclists: Nr. 9 : Rudi Kunz, worldspeedrecord holder 1965. Nr. 28 : Jan de Vries(NL), worldchampion roadrace in 1971 and 1973, 14 Grandprix victories. Nr. 17 : Aalt Toersen(NL), Sprint record holder 1968, 6 Grandprix victories.

Jan de Vries, from Holland in 1971. He also became worldchampion 50 cc in 1973. In 1972 he was second just behind Angel Nieto. Above you can also see his 1971 worldchampionship bike.

Kreidler Florett RS, 1973. Jan de Vries in this advertising picture, showing us the Kreidler Florett RS of 1973. That same year Kreidler introduced a new RS model, with a different gastank and new frontsuspension. (Click picture to enlarge)

Jan de Vries (right) and his team. He is the 1973 worldchampion The 1973 worldchampionship bike. 20 HP was for Jan de Vries enough to get a topspeed at Francorshamps of 204 km/h!

Kreidler 1964 roadrace engine.   - single cylinder, - 2-stroke, - 50 cc, - 2 carburators (18 mm), - 2 rotating disk valves! This is the original Kreidler roadrace engine

Left view on Kreidler/Van Veen 1975 roadrace engine. 50 cc engine with one rotating disk-valve inlet.   1 - Radiator 2 - Waterpump 3 - Cylinder 4 - Carburator (28 mm) 5 - Crankshaft 6 - Electronic ignition 7 - Exhaust pipe 8 - Gearshift linkage 9 - Battery

Worldchampionships 50cc Roadrace Year Rider Constructor 1962 Ernst Degner (East-Germany) Suzuki 1963 Hugh Anderson (New Zealand) Suzuki 1964 Hugh Anderson (New Zealand) Suzuki 1965 Ralph Bryans (Ireland) Honda 1966 Hans-Georg Anscheidt (West-Germany) Suzuki 1967 Hans-Georg Anscheidt (West-Germany) Suzuki 1968 Hans-Georg Anscheidt (West-Germany) Suzuki 1969 Angel Nieto (Spain) Derbi 1970 Angel Nieto (Spain) Derbi 1971 Jan de Vries (The Netherlands) Kreidler 1972 Angel Nieto (Spain) Derbi 1973 Jan de Vries (The Netherlands) Kreidler 1974 Henk van Kessel (The Netherlands) Kreidler 1975 Angel Nieto (Spain) Kreidler 1976 Angel Nieto (Spain) Bultaco 1977 Angel Nieto (Spain) Bultaco 1978 Ricardo Tormo (Spain) Bultaco 1979 Euginio Lazzarini (Italy) Kreidler 1980 Euginio Lazzarini (Italy) Kreidler 1981 Ricardo Tormo (Spain) Bultaco 1982 Stefan Doerflinger (Switzerland) Kreidler 1983 Stefan Doerflinger (Switzerland) Kreidler (Sponsor Krauser)

Kreidler/Van Veen G.P. Replica, 1979. This picture is scanned out of a Dutch 1979 motor magazine. The testdriver was, as you can see, far too big for the bike. Engine: 50 cc single cylinder 2-stroke, Inlet: Rotating disc valve inlet Carburator: 28 mm Bing Cooling: Watercooled Startsystem: Push Gearbox: 6 speed, dry clutch Performance: 13 kW (18 BHP)/16000 RPM Weight: 56 kg Price in 1979: HFL 13.924,00

Kreidler/Van Veen Grand Prix, 1982. Engine: 50 cc single cylinder 2-stroke, Rotating valve inlet Bore x Stroke: 40 x 39.7 mm Cooling: Watercooled Startsystem: Push Gearbox: 6 speed, dry clutch Performance: 14.2 kW (19 BHP)/15400 RPM Topspeed: 185 km/h Weight: 56 kg