1968-71 Archives - MotorcycleSpecifications.com

MV Agusta 250 Bicilindrico (1968-71)

admin — Tue, 04 Apr 2023 12:01:13 +0000

The MV Agusta 250 Bicilindrico (1968-71) motorcycle was a four-stroke, parallel twin model, with a capacity of 247cc and a compression ratio of 10.0:1. Its engine had pushrod operation, 2 valves per cylinder, and was air-cooled with wet sump lubrication. The bike had a kick start and a maximum power of 19 hp @ 7000rpm. Its clutch was a wet multiple plate clutch, and the transmission was a 5-speed manual. The final drive was a chain. The bike had a single beam tubular and pressed steel frame, and its suspension system consisted of a telescopic hydraulic fork on the front and a swingarm with hydraulic shocks on the rear. The front and rear brakes were drums with diameters of 180mm and 150mm, respectively. The bike’s dimensions were 1960mm (77.1in) in length, 620mm (24.4in) in width, and had a wheelbase of 1300mm (51.2in). The dry weight of the bike was 142kg (313lbs), and its fuel capacity was 13 litres (3.4 US gal).

Technical specifications:

Make Model: MV Agusta Bicilindrico B

Year: 1968 – 71
Engine: Four stroke, parallel twin, pushrod, 2 valve per cylinder
Capacity: 247
Bore x Stroke: 53 x 56 mm
Cooling System: Air cooled
Compression Ratio: 10.0:1
Lubrication: Wet sump
Induction: 2x 22 mm carburettor
Ignition: Dynamo
Starting: Kick
Max Power: 19 hp / @ 7000 rpm
Clutch: Wet multiple plate clutch
Transmission: 5 Speed
Final Drive: Chain
Frame: Single beam tubular and pressed steel
Front Suspension: Telescopic hydraulic fork
Rear Suspension: Swingarm with hydraulic shocks
Front Brakes: 180mm Drum
Rear Brakes: 150mm Drum
Front Tyre: 2.75- 18
Rear Tyre: 3.25- 18
Dimensions: Length: 1960 mm / 77.1 in Width: 620 mm / 24.4 in
Wheelbase: 1300 mm / 51.2 in
Dry Weight: 142 kg / 313 lbs
Fuel Capacity: 13 Litres / 3.4 US gal

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BSA Vintage Models (1968-71)

admin — Mon, 03 Apr 2023 12:43:08 +0000

The BSA Vintage Models from 1968-71 consisted of various motorcycles with different engine sizes, ranging from the 175cc BSA A to the 770cc BSA E. Other models include the 249cc BSA B de Luxe and B29, the 441cc BSA G29, the 557cc BSA Flat Tank, H, H25, K, and L, the 350cc BSA 350 SV, and the 493cc BSA S26, S27, and S31 Sloper. These motorcycles were produced by the British motorcycle manufacturer BSA during the late 1960s and early 1970s.

Technical specifications:

BSA Vintage Models (1968-71) – motorcycle specifications

Make Model: BSA A

BSA A28: 175 cc
BSA B de Luxe: 249 cc
BSA E: 770 cc
BSA Flat Tank: 557 cc
BSA G29: 441 cc
BSA H: 557 cc
BSA H25: 557 cc
BSA K: 557 cc
BSA L: 349 cc
BSA 350 SV: 350 cc
BSA S26: 493 cc
BSA S27: 493 cc
BSA B29: 249 cc
BSA S31 Sloper: 493 cc

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Laverda 750GT “America Eagle” (1968-71)

admin — Sun, 02 Apr 2023 16:17:58 +0000

The Laverda 750GT “America Eagle” (1968-71) is a four-stroke, parallel twin cylinder motorcycle with a capacity of 753.9 cc / 46.0 cu-in. It has a compression ratio of 7.7:1, uses 2x 30mm Dell’Orto vhb30 carburetors, and a Bosch ignition. The bike has a maximum power of 52 hp / 38 kW @ 6900 rpm and a 5-speed transmission with a chain final drive. The front suspension is composed of Marzocchi telescopic forks and the rear suspension is a swinging arm with dual shocks. The bike has single 230mm drum front brakes and 200mm drum rear brakes, with a front tyre size of 3.50-18 and rear tyre size of 4.00-18. The Laverda 750GT “America Eagle” weighs 218.0 kg / 480.6 lbs and has a fuel capacity of 19 litres / 5.0 US gal.

Technical specifications:

Make Model: Laverda 750GT “America Eagle”

Year: 1968 – 71
Engine: Four stroke, parallel twin cylinder.
Capacity: 753.9 cc / 46.0 cu-in
Bore x Stroke: 80 x 74 mm
Cooling System: Air cooled
Compression Ratio: 7.7:1
Induction: 2x 30mm Dell’Orto vhb30 carburetors
Ignition: Bosch
Starting:
Max Power: 52 hp / 38 kW @ 6900 rpm
Transmission: 5 Speed
Final Drive: Chain
Front Suspension: Marzocchi telescopic forks
Rear Suspension: Swinging arm dual shocks
Front Brakes: Single 230mm drum
Rear Brakes: 200mm Drum
Front Tyre: 3.50-18
Rear Tyre: 4.00-18
Wet Weight: 218.0 kg / 480.6 lbs
Fuel Capacity: 19 Litres / 5.0 US gal

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BSA Victor Special (1968-71)

admin — Mon, 27 Mar 2023 03:34:02 +0000

The BSA Victor Special was a popular motorcycle model produced from 1968-71. It was a four-stroke, single cylinder, OHV, 2 valve engine with a 441 cc capacity and a compression ratio of 9.4:1. The bike was air-cooled and used a dry sump lubrication system with a 3L oil capacity. It had a 30mm Amal Concentric carburetor, coil ignition, and a 12V battery with kick start. The bike had a maximum power output of 20.6 kW/28 hp @ 6500 rpm. It had a wet, multi-plate clutch, 4-speed transmission, and chain final drive. The frame was tubular steel with a cradle, and it had telescopic forks and a swing arm twin shock rear suspension. The front and rear brakes were sls drum brakes with steel wire spoke wheels and 3.25 x 19 in. front and 4.00 x 18 in. rear tires. The bike weighed 139 kg/306 lbs dry and 145 kg/320 lbs wet with a fuel capacity of 8 L/1.75 US gal. The average consumption was 3.1 L/100 km/23 km/l/55 mpg, and the top speed was 153 km/h/95 mph. The BSA Victor Special came in BSA racing yellow, polished alloy, and chrome.

Technical specifications:

Make Model: BSA Victor Special

Year: 1968 – 71
Engine: Four stroke, single cylinder, OHV, 2 valves
Capacity: 441 cc / 26.9 cub in.
Bore x Stroke: 79 x 90 mm
Cooling System: Air cooled
Compression Ratio: 9.4:1
Lubrication: Dry sump
Oil Capacity: 3 L / 5 pints
Exhaust: Steel, high level
Carburetor: 30 mm Amal Concentric
Ignition: Coil
Battery: 12V
Starting: Kick start
Max Power: 20.6 kW / 28 hp @ 6500 rpm
Clutch: Wet, multi-plate
Transmission: 4-Speed
Final Drive: Chain
Frame: Tubular steel, cradle
Front Suspension: Telescopic forks
Rear Suspension: Swing arm, twin shock
Front Brakes: 8 in., sls drum
Rear Brakes: 7 in., sls drum
Wheels: Steel, wire spoke
Front Tyre: 3.25 x 19 in.
Rear Tyre: 4.00 x 18 in.
Dimensions: Length: 2083 mm / 82 in. Width: 813 mm / 32 in.
Wheelbase: 1346 mm / 53 in.
Ground Clearance: 214 mm / 8.5 in.
Seat Height: 813 mm / 32 in.
Dry Weight: 139 kg / 306 lbs
Wet Weight: 145 kg / 320 lbs
Fuel Capacity: 8 L / 1.75 US gal
Average Consumption: 3.1 L/100 km /23 km/l / 55 mpg
Top Speed: 153 km/h / 95 mph
Colours: BSA racing yellow, polished alloy and chrome
Source: Wikipedia, Motorcycle Classics, Seaweed and Gravel

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Honda CB250G (1968-71)

admin — Sun, 26 Mar 2023 23:07:04 +0000

The Honda CB250G was a motorcycle model produced between 1968 and 1971. The bike had an air-cooled, four-stroke, twin-cylinder engine with OHC and 2 valves per cylinder. It had a capacity of 249 cc and a compression ratio of 9.5:1. The maximum power output was 30 hp at 10500 rpm, with maximum torque not specified. The bike had a 5-speed transmission and chain drive, with drum brakes on both the front and rear wheels. The front and rear suspensions were not specified. The bike had a wet weight of 170 kg and a fuel capacity of 10 litres. The front and rear tyres had dimensions of 3.00-18 and 3.25-18 respectively.

Technical specifications:

Make Model: Honda CB 250

Year: 1968-71
Engine: Air cooled, four stroke, twin cylinder, OHC, 2 valve per cylinder
Capacity: 249
Bore x Stroke: 56 x 50.6 mm
Compression Ratio: 9.5:1
Induction:
Ignition / Starting:
Max Power: 30 hp 21.9 kW @ 10500 rpm
Max Torque:
Transmission / Drive: 5 Speed / chain
Front Suspension:
Rear Suspension:
Front Brakes: Drum
Rear Brakes: Drum
Front Tyre: 3.00-18
Rear Tyre: 3.25-18
Wet Weight: 170 kg
Fuel Capacity: 10 Litres

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Ducati 350 Scrambler (1968-71)

admin — Sun, 26 Mar 2023 02:16:13 +0000

The Ducati 350 Scrambler was a four-stroke, single-cylinder motorcycle produced from 1968 to 1971. Its engine had a 340.2cc capacity with a bore and stroke of 76 x 75mm and a compression ratio of 10:1. The bike was equipped with a Dell’Orto SS1 29D carburetor and a coil ignition system with a 6V 30W generator and a 13.5 Ah battery. It had a kick-start mechanism and generated a maximum power of 17.5 kW or 24 hp at 8500 rpm. The motorcycle’s wet multi-plate clutch was driven by a 2.111:1 primary drive and transmitted power through a five-speed gearbox. Gear ratios were 2.46:1 for first gear, 1.73:1 for second gear, 1.35:1 for third gear, 1.10:1 for fourth gear, and 0.97:1 for fifth gear, with a 3.214:1 final drive ratio. The motorcycle’s front suspension employed a 35mm Marzocchi telescopic hydraulic fork, while the rear suspension consisted of dual Marzocchi shocks with a swingarm. Both the front and rear brakes featured drum brakes with a 180mm and 160mm diameter, respectively. The front and rear tires were provided by Pirelli and measured 3.50 -19 and 4.00 -18, respectively. The bike’s length, width, height, and wheelbase were 2120 mm, 940 mm, 1150 mm, and 1380 mm, respectively, with a dry weight of 133 kg. The fuel capacity was 10 liters or 2.6 gallons.

Technical specifications:

Make Model: Ducati 350 Scrambler

Year: 1968 – 71
Engine: Four stroke, single cylinder, SOHC, bevel gear driven
Capacity: 340.2cc / 20.8 cu in
Bore x Stroke: 76 x 75 mm
Compression Ratio: 10:1
Induction: Dell’Orto SS1 29D
Ignition: Coil, 6V 30W generator
Battery: SAFA 3L3 13.5 Ah
Starting: Kick
Max Power: 17.5 kW / 24 hp @ 8500 rpm
Clutch: Wet, multiplate
Primary Drive: 2.111:1
Transmission: 5 Speed
Gear Ratios: 1st 2.46 / 2nd 1.73 / 3rd 1.35 / 4th 1.10 / 5th 0.97:1
Final Drive: Chain
Final Drive Ratio: 3.214:1
Front Suspension: 35 mm Marzocchi telecsopic hydraulic fork
Rear Suspension: Swingarm, Dual Marzocchi shocks
Front Brakes: 180 mm Drum
Rear Brakes: 160 mm Drum
Front Tyre: 3.50 -19, Pirelli
Rear Tyre: 4.00 -18, Pirelli
Dimensions: Length: 2120 mm / 83.5 in Width: 940 mm / 37.4 in Height: 1150 mm / 45.3 in
Wheelbase: 1380 mm / 54.3 in
Dry Weight: 133 kg / 293 lbs
Fuel Capacity: 10 Litres / 2.6 US gal / 2.2 Imp gal

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BSA A65 Firebird Scrambler (1968-71)

admin — Sat, 25 Mar 2023 21:43:13 +0000

The BSA A65 Firebird Scrambler and Firebird SS were produced between 1968 and 1971. These motorcycles had a four-stroke, parallel twin, OHV engine with a capacity of 654 cc and a bore and stroke ratio of 75 x 74 mm. The bike also featured twin Amal monobloc 389/67 carburetors, high-level chrome exhaust, and twin coil Lucas 4CA ignition. The starting was done with kick start and the bike had a two 12V, 10 a.h. Lucas RM19 battery. The bike had a maximum power of 38 hp at 5800 rpm in 1968 and 49 hp at 7000 rpm in 1970. The BSA A65 Firebird Scrambler and Firebird SS had a multi-plate, wet clutch, and a 4-speed transmission with a final drive chain. It had steel tubing cradle, telescopic forks with coil spring-hydraulically damped, swing arm rear suspension with coil springs/hydraulically damped, and steel wire-spoked wheels. The front brakes were 20.32 cm/8 in. drum SLS, and the rear brakes were 17.78 cm/7 in. drum SLS. The BSA A65 Firebird Scrambler and Firebird SS had a wet weight of 184 kg/406 lbs and a top speed of 169 km/h and 105 mph. The fuel capacity of this bike was 18 L/4.8 US gal in Europe and 9 L/2.4 US gal in the US.

Technical specifications:

Make Model: BSA A65 Firebird Scrambler and Firebird SS

Year: 1968 – 71
Engine: Four stroke, parallel twin, OHV
Capacity: 654 cc / 39.9 cub in.
Bore x Stroke: 75 x 74 mm
Carburetors: Twin Amal monobloc 389/67
Cooling System: Air cooled
Compression Ratio: 9.0:1
Lubrication: Dry sump
Engine Oil: SAE 20W50
Oil Capacity: 3.4 L / 6 pints / 0.9 US gal
Exhaust: Twin, high level, chrome
Ignition: Twin coil, Lucas 4CA
Spark Plug: Champion N4
Battery: 2 x 12V, 10 a.h., Lucas RM19
Starting: Kick start
Max Power: 1968: 27.9 kW / 38 hp @ 5800 rpm 1970: 35.9 kW / 49 hp @ 7000 rpm
Clutch: Multi-plate, wet
Transmission: 4 Speed
Final Drive: Chain
Gear Ratio: 1st 11.10 / 2nd 7.18 / 3rd 5.13 / 4th 4.35:1
Frame: Steel tubing, cradle
Front Suspension: Telescopic forks with coil spring – hydraulically damped
Rear Suspension: Swing arm, coil springs/hydraulically damped
Front Brakes: 20.32 cm / 8 in., drum, SLS
Rear Brakes: 17.78 cm / 7In., drum, SLS
Wheels: Steel, wire spokes
Front Rim: WM2-18
Rear Rim: WM2-18
Front Tyre: 3.25 x 18 in.
Rear Tyre: 1968: 3.50 x 18 in. 1970: 4.00 x 18 in
Dimensions: Length: 2060 mm / 81.0 in. Width: 711 mm / 28 in.
Wheelbase: 1372 mm / 54 in.
Ground Clearance: 178 mm / 7.0 in.
Seat Height: 838 mm / 33 in.
Wet Weight: 184 kg / 406 lbs
Fuel Capacity: Europe:18 L / 4.8 US gal US: 9 L / 2.4 US gal
Top Speed: 169 km/h / 105 mph

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