2026 Thumpstar TSK 90

Electric start, clutch-free 4-speed, and built-in safety for growing riders.

TSK 90 Small Size. Big Confidence. Pure Thumpstar Fun!

The Thumpstar TSK 90 is the perfect stepping stone for young riders ready to build confidence and skills on two wheels. Designed specifically for junior riders, the TSK 90 combines manageable power, quality components, and proven Thumpstar durability in a compact, easy-to-ride package.

Powered by a reliable 90cc 4-stroke engine and paired with a smooth semi-automatic 4-speed transmission, the TSK 90 makes learning to shift simple — without the added complexity of a manual clutch. With both electric and kick start options, riders get convenience and reliability every time they head out.

Built with safety and performance in mind, the TSK 90 features inverted front forks, front and rear disc brakes, a throttle limiter, and an emergency kill lanyard — making it a fantastic choice for backyard tracks, open paddocks, and weekend adventures.

Thumpstar is an Australian company that strives to give riders the best performing motorcycles for their market. Quality and integrity of the bikes is paramount to the Thumpstar reputation!

Check out these Specs:

ENGINE & TRANSMISSION
Engine FH | 4 Stroke
CC Rating 90cc
Gearbox Semi Auto | 4 Speed (N1234)
Starter Electric & Kick
Carburetion PZ 19mm
Exhaust Pipe Bomb DW2 28mm w/ Header Bomb
Final Drive 420 Chain
Top Speed 45kph (depending on gearing)

SUSPENSION, BRAKES, & WHEELS
Suspension Front Inverted Forks | Length 600mm | Non-Adjustable
Suspension Rear Mono Shock | Length 280mm | Non-Adjustable
Brakes Front Disc | Single Piston
Brakes Rear Disc | Single Piston
Wheel & Tire Front Steel Rim | 1.40-12
Wheel & Tire Rear Steel Rim | 1.85-10

DIMENSIONS & WEIGHT
Wheelbase (axle to axle) 1120mm | 44"
Seat Height 680mm | 27"
Product Weight N.W | G.W 50 / 60 kg | 110 / 132 lbs.
Tank Capacity 3 Liters | 0.8 Gallon
Product Packing Size 1230 x 390 x 650mm | 0.31 m3

For more information about THUMPSTAR visit: https://thumpstar.ca