R12S
2025 BMW R12S Technical Analysis & Specification Breakdown
Built around BMW's motorcycle platform, the 2025 BMW R12S relies on a 1170 cc engine powerplant. In factory specification, maximum torque reaches 115 Nm, transferring power to the rear wheel through a constant-mesh 6-speed manual, cardan drive shaft gearbox. Internal engine geometry specifies a bore and stroke of mm 101.0 x 73.0 with a 12.0:1 compression ratio.
Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 59 mm (2.3 in) wheelbase engineered for quick, flickable steering geometry. The 4.2-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 134 km/h (83 mph).
Within MotoLibrary's BMW archive, this model family spans 2 indexed model years from 2025 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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