The 1989 BMW K75 S was released with the same technical, visual, and performance specifications as the previous model without any significant modifications whatsoever. The K75 S was identical to the base model but packed a sportier fairing and a square headlight.
It packed standard fittings such as three-spoke lightweight aluminum alloy wheels, a three-into-one exhaust system, a two-up seat with passenger grab handles, a sports fairing with a square headlight, and a medium-sized windscreen.
In addition, the bike was addressed to a broad category of riders and handled the role of a daily commuter for the urban jungle. Still, the bike managed weekend runs outside the city, being fitted with appropriate accessories.
Suspension-wise, the motorcycle packed a telescopic fork on the front that provided 185 mm of travel and an aluminum swingarm with a right-hand side-mounted shock absorber with 114 mm of travel.
Unlike other versions of the base K75 model, the S version packed a 285 mm brake disc on the rear squeezed by a single-piston caliper. The front wheel was fitted with two 285 mm discs and dual-piston calipers.
In the power department, the 1989 BMW K75 S took its muscles from a 740cc four-stroke liquid-cooled three-cylinder engine mounted underneath its fuel tank and fed by a fuel injection system, delivering an output power of 75 hp at 8,500 rpm and 68 Nm (50 lb-ft) torque at 6,570 rpm.