2025 Rieju Century Technical Analysis & Specification Breakdown
At the heart of the 2025 Rieju Century sport motorcycle, Rieju relies on a 125 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 58.0 x 47.0 mm (2.3 x 1.9 inches).
On the scales, the Century measures 135 kg (298 lbs) dry. Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,360 mm (53.5 in) wheelbase engineered for quick, flickable steering geometry. The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Rieju archive, this model family spans 6 indexed model years from 2019 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
790 mm (31.1 in)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Bore x Stroke58.0 x 47.0 mm (2.3 x 1.9 inches)
Valves/Cylinder4
Fuel SystemInjection
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeHigh strength steel tubular
Front SuspensionInverted Fork, Ø41mm.
Rear SuspensionDual shocks with preload reservoirs
Wheelbase1360 mm (53.5 inches)
Wheels & Brakes
Front Tyre100/90-18
Rear Tyre130/80-17
Front BrakesSingle disc. Combined braking system. Wave disc.
Front Brake Ø280 mm (11.0 inches)
Rear BrakesSingle disc. Wave disc
Rear Brake Ø220 mm (8.7 inches)
WheelsWire spoked
Dimensions & Weight
Dry Weight135.0 kg (297.6 pounds)
Seat Height790 mm (31.1 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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
