In 1989, the German motorcycle manufacturer launched the BMW R100 RT Mono, one of many versions of the base R100 model created by the House of Munich. The RT Mono received the same treatment as the RS Mono, featuring a BMW Motorrad Monolever swingarm.
The 1989 RT Mono model came with the same package as previous models, featuring the same technical, visual, and performance specifications without any significant modifications whatsoever.
It packed the same standard features as previous ones, including a half fairing with a round headlight, a windscreen for better protection against elements, a one-piece dual seat, side-mounted panniers, a dual exhaust system with a silencer on each side, and eight-spoke aluminum wheels.
It was built around a steel frame that housed the suspension system. It comprised a telescopic fork with a hydraulic shock absorber on the front that offered 200 mm of travel and a single-sided swingarm with a single shock absorber on the rear that provided 125 mm of travel.
As for the braking power, the machine packed two 260 mm brake discs engaged by dual-piston calipers on the front wheel and a 200 mm drum braking unit on the rear, providing optimum stopping power.
Power-wise, the 1989 BMW R100 RT Mono had its heartbeat set by a 980cc four-stroke air-cooled twin-cylinder boxer engine that delivered 60 hp with maximum strength at 7,000 rpm and 75 Nm (55 lb-ft) torque at 6,000 rpm.