Engineered by Suzuki for the naked motorcycle segment, the 2025 Suzuki GSX-8S pairs a 776 cc (47.4 cu in) liquid-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, maximum torque reaches 78 Nm (57.5 lb-ft), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 84.0 x 70.0 mm (3.3 x 2.8 inches) with a 12.8:1 compression ratio.
On the scales, the GSX-8S measures 202 kg (445 lbs) wet (curb). 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, combined with a 1,465 mm (57.7 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank paired with a rated consumption of 3.5 L/100 km provides an estimated theoretical range of roughly 400 km (249 miles) between fill-ups.
Within MotoLibrary's Suzuki archive, this model family spans 3 indexed model years from 2023 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~400 km (249 mi)
Engine
Displacement776.0 ccm (47.35 cubic inches)
Engine TypeTwin, four-stroke
Engine Details270-degree crankshaft layout
Torque78.0 Nm (8.0 kgf-m or 57.5 ft.lbs)
Compression12.8:1
Bore x Stroke84.0 x 70.0 mm (3.3 x 2.8 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTransistorized
LubricationForced feed circulation, wet sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet, multi-plate
DrivelineO-ring style drive chain, 525 x 118L
Performance
Fuel Consumption3.50 litres/100 km (28.6 km/l or 67.21 mpg)
Greenhouse Gases81.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeSteel
Rake25.0°
Trail104 mm (4.1 inches)
Front SuspensionInverted telescopic, coil spring, oil damped
Front Travel130 mm (5.1 inches)
Rear SuspensionLink type, coil spring, oil damped
Rear Travel130 mm (5.1 inches)
Wheelbase1465 mm (57.7 inches)
Ground Clearance145 mm (5.7 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre180/55-ZR17
Front BrakesDouble disc. ABS. Nissin, radial-mount 4-piston calipers
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
