Difference between revisions of "BMW K75"

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|related          = [[BMW K75S]]<br />[[BMW K75RT]]<br />[[BMW K75C]]
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|related          = [[BMW K75S]]<br />[[BMW K75RT]]<br />[[BMW K75C]]<br />[[BMW K75T]]
 
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Revision as of 19:48, 31 July 2019

Bmw-k75-1986-1986-3.jpg
BMW K75
Manufacturer
BMW
Also called K 75
Production 1985 - 1996
Class Naked
Predecessor BMW K100
Engine
in-line three, four-stroke
Bore / Stroke 67.0mm x 70.0mm
Compression ratio 11.0:1
Top Speed 121 mph (194 km/h)
Horsepower 73.35 HP (54.7 KW) @ 8500RPM
Torque 49.2 ft/lbs (66.7 Nm) @ 6750RPM
Spark Plug NGK D8EA '85-95 [1]
Battery YUASA YIX30L-BS '85-95 [1]
Transmission Gear box: 5-speed

Final Drive: shaft drive (cardan)

Clutch: dry, single plate
Final Drive Shaft
Suspension Front: telescopic fork with hydraulic shock absorber
Rear: Monolever swinging arm
Brakes Front: dual disc
Rear: single disc
Front Tire 100/90-18
Rear Tire 130/90-17
Wheelbase 59.69 inches (1516 mm)
Length 87.4 inches (2220 mm)
Width 35.39 inches (899 mm)
Seat Height 29.92 inches (760 mm)
Weight 500.45 pounds (227.0 Kg) (dry), 228.0 kg (wet)
Fuel Capacity 5.55 Gallon (21.00 Liters)
Related BMW K75S
BMW K75RT
BMW K75C
BMW K75T
Manuals Service Manual


The BMW K75 was a in-line three, four-stroke Naked motorcycle produced by BMW between 1985 and 1996. It could reach a top speed of 121 mph (194 km/h). Max torque was 49.2 ft/lbs (66.7 Nm) @ 6750 RPM. Claimed horsepower was 73.35 HP (54.7 KW) @ 8500 RPM.

An all-new design that was supposed to replace BMW's traditional flat-twins, the BMW K100 arrived for 1984 restating the virtues of solidity, comfort and exemplary build quality long associated with the marque. An 8-valve twin-cam unit displacing 998cc, the brick-like, four-cylinder motor was laid on its side, lowering the center of gravity, and mounted fore-and-aft to facilitate the retention of BMW's characteristic shaft drive. Bosch electronic fuel injection was employed and the long-stroke four developed its maximum output of 90bhp at a relatively low 8,000rpm. In 1985 the K100 spawned a 740cc three-cylinder K75 variant that featured a 120-degree crankshaft and a higher compression ratio. Weighing less than the K100 and with 75bhp on tap, the K75 was a lively performer and deservedly popular, but did not receive the development that went into the four-cylinder models, which would later benefit from four-valves-per-cylinder heads. The usual range of BMW model variants was produced up to the end of three-cylinder K-Series production in 1995.

Engine

The engine was a liquid cooled in-line three, four-stroke. A 67.0mm bore x 70.0mm stroke result in a displacement of just 740.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive

The bike has a 5-speed transmission. Power was moderated via the dry, single plate.

Chassis

It came with a 100/90-18 front tire and a 130/90-17 rear tire. Stopping was achieved via dual disc in the front and a single disc in the rear. The front suspension was a telescopic fork with hydraulic shock absorber while the rear was equipped with a Monolever swinging arm. The K75 was fitted with a 5.55 Gallon (21.00 Liters) fuel tank. The bike weighed just 500.45 pounds (227.0 Kg). The wheelbase was 59.69 inches (1516 mm) long.

1985 BMW K 75

The 1985 MY BMW K 75 has, at its heart, a liquid-cooled, four-stroke, 740cc, in-line three cylinder powerhouse paired to a five-speed manual transmission that can produce a claimed 75 horsepower and 68 Nm of torque.

Also, this naked machine comes standard with a telescopic front fork with a hydraulic shock absorber, a Monolever rear suspension, a dual seat, an analogue instrument cluster, cast-aluminum wheels, a rear luggage rack, and a large, round headlight.


1986 BMW K 75

The 1986 MY BMW K 75 boasts key features such as a telescopic front fork with a hydraulic shock absorber, a Monolever rear suspension, a dual seat, an analogue instrument cluster, cast-aluminum wheels, a rear luggage rack, and a large, round headlight. In the tech/engine department, it sports a liquid-cooled, four-stroke, 740cc, in-line three cylinder powerplant mated to a five-speed manual transmission, that reaches a maximum power output of 75 horsepower and 68 Nm of torque.



1987


1988

  • Three Cylinder
  • Fuel Injected

1990

1991

1992

1992 BMW K75


  • Spark Plug: NGK D7EA

In Media


References

  1. 1.0 1.1 2019 Western Power Sports Catalog. Western Power Sports. 2019.