Built around Thumpstar's minibike, cross motorcycle platform, the 2020 Thumpstar TSX 125 utilizes a 125 cc (7.6 cu in) single cylinder, four-stroke layout.
On the scales, the TSX 125 measures 80 kg (176 lbs) dry. Rider ergonomics and chassis geometry center around 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).
Within MotoLibrary's Thumpstar archive, this model family spans 2 indexed model years from 2020 to 2022, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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
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.
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.
