DSC4 Drag Star Classic Four 400

2011 Yamaha DSC4 Drag Star Classic Four 400 Technical Analysis & Specification Breakdown

Positioned in Yamaha's custom - cruiser motorcycle lineup, the 2011 Yamaha DSC4 Drag Star Classic Four 400 pairs a 399 cc (24.4 cu in) air-cooled v2, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 32.2 HP (23.5 kW) at 7,500 rpm while maximum torque reaches 32 Nm (23.6 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 80.7 HP per liter and a 1,500 rpm working window between peak torque (6,000 rpm) and peak power (7,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the DSC4 Drag Star Classic Four 400 measures 240 kg (529 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.45 kg per horsepower). Rider ergonomics and chassis geometry center around a 710 mm (28 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,625 mm (64 in) wheelbase engineered for planted straight-line stability. The 15-liter (4 US gal) fuel tank paired with a rated consumption of 2.33 L/100 km provides an estimated theoretical range of roughly 644 km (400 miles) between fill-ups.