Editing BMW K75C

{{Motorcycle
|name             = BMW K75C
|photo= BMW K75.jpg
|aka              = K 75 C
|manufacturer     = BMW
|parent_company   =
|production       = 1985 - 1995
|model_year       =
|predecessor      =
|successor        =
|class            = Naked
|engine           = liquid-cooled, four-stroke, [[longitudinal three cylinder]], DOHC, 2 valves per cylinder
|bore_stroke      = 66.0mm x 66.0mm
|compression      = 11.0:1
|top_speed        = 124 mph (200 km/h)
|power            = 74.96 HP (55.9 KW) @ 8500RPM
|torque           = 50.16 ft/lbs (68.0 Nm) @ 6750RPM
|ignition         =
|spark_plug       = {{sparkplug|NGK D8EA}} '86-88
|battery          = {{battery|YUASA 51814}} '86-88
|transmission     = Gear box: 5-speed, manual <br>
Final Drive: [[shaft]] <br>
Clutch: dry, single plate <br>

|final_drive= Shaft
|frame            =
|suspension       =Front: telescopic fork with [[hydraulic]] [[shock absorber]] <br>
Rear: Monolever swinging arm
|brakes           =Front: dual 285mm discs, 2-piston [[calipers]] <br>Rear: single 285mm disc
|front_tire       = {{tire|100/90-18 56H}} 
|rear_tire   	  = {{tire|120/90-18 56H}} 
|rake_trail       =
|wheelbase        = 59.69 inches (1516 mm)
|length           = 87.4 inches (2220 mm)
|width            = 35.39 inches (899 mm)
|height           =
|seat_height      = 31.89 inches (810 mm)
|dry_weight       =
|wet_weight       = 236.0 kg
|fuel_capacity    = 5.55 Gallon (21.00 Liters)
|oil_capacity     =
|fuel_consumption =
|turning_radius   =
|related          = [[BMW K75]]<br />[[BMW K75C]]
|competition      =
|oil_filter= {{oilfilter|K&N KN-163}}<ref name="kl_2019">{{cite book|title=2019 K&L Supply Co Catalog|publisher=[https://www.klsupply.com/ K&L Supply Co]|date=2019}}</ref>
}}

The '''BMW K75''' was a was a liquid-cooled, four-stroke, longitudinal three cylinder, DOHC, 2 valves per cylinder [[standard]] [[motorcycle]] produced by [[BMW]] from 1985 to 1995. At the time of its introduction, the K75 was BMW's cheapest motorcycle. It offers a claimed acceleration of 0&ndash;60&nbsp;mph in 4.6&nbsp;seconds and a top speed of 120&nbsp;mph (193&nbsp;km/h).  Max [[torque]] was 50.16 ft/lbs (68.0 Nm) @ 6750 RPM. Claimed [[horsepower]] was 74.96 HP (55.9 KW) @ 8500 RPM.  
 

==Engine==
The engine was a [[liquid cooled]] liquid-cooled, four-stroke, longitudinal three cylinder, DOHC, 2 valves per cylinder. A 66.0mm [[bore]] x 66.0mm [[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, manual transmission. Power was moderated via the dry, single plate.  

==Chassis==
It came with a 100/90-18 56H front [[tire]] and a 120/90-18 56H rear tire. Stopping was achieved via dual 285mm discs, 2-piston calipers in the front and a single 285mm 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 K 75 C was fitted with a 5.55 Gallon (21.00 Liters) fuel tank. The wheelbase was 59.69 inches (1516 mm) long.  



==Model designations==
[[Image:Bmwk75s.jpg|thumb|1993 K75S with Belly Pan and touring bags|Black BMW K75S with topbox and panniers, parked on grass]]
Various models of the K75 were produced. 
*K75, with no fairing
*K75T, US only model with a windscreen, touring bags, engine crash bars, and rear top case 
*K75C, with a small handlebar mounted 'cockpit' fairing
*K75S, with sports fixed fairing and lower bars
*K75RT, with full fairing for 'road touring' 

S and RT versions have a rear disc brake and 17&nbsp;inch rear wheels whereas the others have a single leading shoe drum brake and 18&nbsp;inch rear wheels. A stiffer, "anti-dive" front suspension was added to the S and RT model.  Later RT version has a [[windshield]] that can be raised or lowered.  Some taller riders complain of wind buffeting with the smaller S model stock windscreen.

==Engine and transmission==
All K75 models share the same drivetrain. They are powered by a 740&nbsp;cc liquid-cooled [[Straight-three engine|inline three-cylinder engine]] with Bosch fuel injection. The US EPA specific engine produce 68 hp while all others produce 75 hp. It utilizes a five-speed transmission with a [[Clutch#Wet_and_dry|dry clutch]] and a [[Drive shaft|shaft-driven]] final drive. 
The engine is rotated 90&nbsp;degrees &ndash; designed to be less vulnerable to damage should the cycle fall over.

==Background to K75 launch and design==
[[Image:BMW k75t.jpg|thumb|1987 BMW K75T|Black BMW K75T with topbox and panniers, parked on a driveway in front of a house and metal gates]]
The K-series lineup, including the K75 and K100, were not just new models; these designs were radical departures from almost every aspect of previous ones.  The K-bikes introduced new technology and refinement for a premium brand.  At the time, BMW and [[Harley-Davidson]] were the only major manufactures that did not offer liquid-cooled engines. Competing brands, notably of Japanese manufacture, were touting the superiority of their liquid-cooled engines and had introduced low maintenance shaft-drive technology into a growing number of their models.  

The K-series offered refinements like computer-controlled fuel injection, all stainless steel exhaust, rust-free aluminum fuel tank, anti-lock brakes or ABS, mono-lever in the rear and single shock absorber, adjustable headlight, high capacity 460&nbsp;watt alternator, cigarette lighter accessory plug-in, self canceling signal lights. It would take more than two decades for other manufacturers to catch-up.  The engine design had excellent vibration isolation.  Two different forks manufactures were used: Showa with an outer upper tube diameter of 1.612" and Fichtel and Sachs measuring 1.627".





==1985 BMW K 75 C==

The 1985 MY BMW K 75C is a middle-class naked machine that comes standard with features such as a suspension package composed of a telescopic fork with a hydraulic shock absorber and a Monolever unit in the rear, cast-aluminum wheels, a nose-fairing with a windscreen, a dual seat, passenger grab rails, a rear luggage rack, mid-mounted foot controls and an analogue instrument cluster.

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 can reach a maximum power output of 75 horsepower and 68 Nm of torque.


==1986 BMW K 75 C==

The 1986 MY BMW K 75C can reach a maximum power output of 75 horsepower and 68 Nm of torque from its liquid-cooled, four-stroke, 740cc, in-line three cylinder powerplant mated to a five-speed manual transmission. It also boasts features such as a telescopic fork with a hydraulic shock absorber and a Monolever unit in the rear, cast-aluminum wheels, a nose-fairing with a windscreen, a dual seat, passenger grab rails, a rear luggage rack, mid-mounted foot controls and an analogue instrument cluster.


==1987 BMW K 75 C==

The 1987 MY BMW K 75C comes with a telescopic fork with a hydraulic shock absorber and a Monolever unit in the rear, cast-aluminum wheels, a nose-fairing with a windscreen, a dual seat, passenger grab rails, a rear luggage rack, mid-mounted foot controls and an analogue instrument cluster.

In the tech/engine department, it sports a four-stroke, liquid-cooled, 740cc, transverse three cylinder powerhouse paired to a five-speed manual transmission, and can reach a maximum power output of 75 horsepower and 68 Nm of torque.


==1988 BMW K 75 C==

The 1988 MY BMW K 75C sports a four-stroke, liquid-cooled, 740cc, transverse three cylinder powerplant mated to a five-speed manual transmission, and can produce a claimed 75 horsepower and 68 Nm of torque. Also, it boasts a hydraulic shock absorber and a Monolever unit in the rear, cast-aluminum wheels, a nose-fairing with a windscreen, a dual seat, passenger grab rails, a rear luggage rack, mid-mounted foot controls and an analogue instrument cluster.


==1989 BMW K 75 C==

The 1989 MY BMW K 75C is a naked, middle-class two-wheeler that is sure to fit the taste for a wide category of riders. At its heart lies a liquid-cooled, four-stroke, 740cc, transverse three cylinder powerhouse paired to a five-speed manual transmission, that produces a claimed 75 horsepower and 68 Nm of torque.

The key features for this machine would be the telescopic front fork with a hydraulic shock absorber, a Monolever suspension in the rear, cast-aluminum wheels, a nose-fairing with a windscreen, a dual seat, passenger grab rails, a rear luggage rack, mid-mounted foot controls and an analogue instrument cluster.


==1990 BMW K 75 C==
[[File:bmw-k75c-1990-1990-2.jpg|600px|1990 BMW K 75 C]]
[[File:bmw-k75c-1990-1990-1.jpg|600px|1990 BMW K 75 C]]
[[File:bmw-k75c-1990-1990-0.jpg|600px|1990 BMW K 75 C]]

The 1990 MY BMW K 75C boasts a telescopic front fork with a hydraulic shock absorber, a Monolever suspension in the rear, cast-aluminum wheels, a nose-fairing with a windscreen, a dual seat, passenger grab rails, a rear luggage rack, mid-mounted foot controls and an analogue instrument cluster.

In the tech/engine department, this naked sports a liquid-cooled, four-stroke, 740cc, in-line three cylinder powerplant mated to a five-speed manual transmission, and can reach a maximum power output of 75 horsepower and 68 Nm of torque.


==In Media==
* [https://motopixel.org/pixel/the-fourth-protocol#bmw-k75c The Fourth Protocol]

==References==
{{Reflist|colwidth=30em}}


{{BMW}}

[[Category:BMW motorcycles|K75]]
[[Category:Standard motorcycles]]
[[Category:BMW K series]]
[[Category:Naked motorcycles]]
[[Category:1980s motorcycles]]
[[Category:1990s motorcycles]]
[[Category:Triple cylinder motorcycles]]