YB9 SRI

1997 Bimota YB9 SRI Technical Analysis & Specification Breakdown

Positioned in Bimota's sport motorcycle lineup, the 1997 Bimota YB9 SRI features a 599 cc (36.6 cu in) liquid-cooled in-line four, four-stroke configuration. In factory specification, peak output is rated at 106 HP (77.4 kW) at 12,500 rpm while maximum torque reaches 65 Nm (47.9 lb-ft) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 177 HP per liter and a 2,500 rpm working window between peak torque (10,000 rpm) and peak power (12,500 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the YB9 SRI measures 175 kg (386 lbs) dry, translating to a power-to-weight ratio of 0.61 HP/kg (1.65 kg per horsepower). Rider ergonomics and chassis geometry center around a 810 mm (31.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance.

Within MotoLibrary's Bimota archive, this model family spans 3 indexed model years from 1996 to 1998, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.