In 1991, the German motorcycle maker released the BMW R100 RT Mono, a more touring-oriented version of the base model that addressed touring riders. It received the same treatment as the RS Mono, which included a BMW Motorrad Monolever system on the rear.
In addition to the R100 RT Mono, the base R100 was offered in many versions with different designations, such as the R100 T, S, CS, RS, RS Classic, RT, RT Classic, TIC, TC, R, and GS.
The 1991 R100 RT Mono was identical to the previous model, packing the same technical, visual, and performance specifications without any significant modifications whatsoever.
The bike was fitted right from the box with standard features, such as 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.
The bike's suspension system 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.
The braking power was handled by two 260 mm brake discs coupled to dual-piston calipers on the front wheel and a 200 mm drum braking unit mounted on the rear, providing optimum braking performance.
As for power, the 1991 BMW R100 RT Mono took its muscles from 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.