Engineered by Thumpstar for the minibike, sport motorcycle segment, the 2020 Thumpstar TSX 125 SW relies on a 125 cc (7.6 cu in) single cylinder, four-stroke powerplant.
On the scales, the TSX 125 SW measures 80 kg (176 lbs) dry. Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,260 mm (49.6 in) wheelbase engineered for quick, flickable steering geometry. The 3.4-liter (0.9 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 90 km/h (56 mph).
Standover Height
830 mm (32.7 in)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Fuel SystemCarburettor. Mikuni VM22 26mm
Transmission
Final DriveChain (final drive)
Performance
Top Speed90.0 km/h (55.9 mph)
Chassis
Front SuspensionInverted Telescopic
Rear SuspensionVS 1 Linkage U Shock
Wheelbase1260 mm (49.6 inches)
Wheels & Brakes
Front Tyre70/100-14
Rear Tyre80/100-12
Front BrakesSingle disc. Dual piston hydraulic disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc. HSK Single Piston
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight80.0 kg (176.4 pounds)
Seat Height830 mm (32.7 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.
