Positioned in Hyosung's allround motorcycle lineup, the 2008 Hyosung RT125D pairs a 124 cc (7.6 cu in) oil & air-cooled v2, four-stroke architecture with road-focused gearing.
On the scales, the RT125D 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 1,350 mm (53.1 in) wheelbase engineered for quick, flickable steering geometry. The 8-liter (2.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Hyosung archive, this model family spans 5 indexed model years from 2008 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
790 mm (31.1 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Fuel SystemCarburettor. BDS26
CoolingOil & air
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Front SuspensionTelescopic
Rear SuspensionMono shock absorber
Wheelbase1350 mm (53.1 inches)
Ground Clearance230 mm (9.1 inches)
Wheels & Brakes
Front Tyre110/70-H17
Rear Tyre130/70-H17
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
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.
