At the heart of the 2023 Paton S1-R Lightweight sport motorcycle, Paton features a 649 cc (39.6 cu in) liquid-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 71.1 HP (51.9 kW) at 8,500 rpm while maximum torque reaches 64 Nm (47.2 lb-ft) at 7,000 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 109.6 HP per liter and a 1,500 rpm working window between peak torque (7,000 rpm) and peak power (8,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the S1-R Lightweight measures 165 kg (364 lbs) wet (curb), translating to a power-to-weight ratio of 0.43 HP/kg (2.32 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, combined with a 1,390 mm (54.7 in) wheelbase engineered for quick, flickable steering geometry. The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 220 km/h (137 mph).
Specific Output
109.6 HP/L
Power-to-Weight
0.43 HP/kg (2.32 kg/HP)
Power Band Window
7,000–8,500 rpm
Standover Height
810 mm (31.9 in)
Engine
Displacement649.0 ccm (39.60 cubic inches)
Engine TypeTwin, four-stroke
Power71.1 HP (51.9 kW)) @ 8500 RPM
Torque64.0 Nm (6.5 kgf-m or 47.2 ft.lbs) @ 7000 RPM
Compression10.8:1
Bore x Stroke83.0 x 60.0 mm (3.3 x 2.4 inches)
Fuel SystemInjection. Keihin, 38mmx2
CoolingLiquid
Transmission
Final DriveChain (final drive)
ClutchWet multi-disc clutch
Performance
Top Speed220.0 km/h (136.7 mph)
ExhaustFull titanium SC-Project exhaust system
Chassis
Frame TypeT.I.G. welded high tensile steel tube
Rake24.5°
Trail105 mm (4.1 inches)
Front SuspensionOhlins FGRT204, 43mm upside down forks.
Front Travel130 mm (5.1 inches)
Rear SuspensionOhlins dual shocks
Rear Travel130 mm (5.1 inches)
Wheelbase1390 mm (54.7 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre180/55-ZR17
Front BrakesDouble disc. Brembo
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. Brembo
Rear Brake Ø220 mm (8.7 inches)
WheelsOZ Racing forged wheels. Metzeler Racetec RR tires.
Dimensions & Weight
Weight incl.165.0 kg (363.8 pounds)
Seat Height810 mm (31.9 inches) If adjustable, lowest setting.
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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
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.
