Thumpstar MX-50 SR

Thumpstar Pit-Bikes are available for in store pick up only.

Genuine Thumpstar the original mini bike brand that started in Australia back in 2004

(Call For Availability: Price 2399.00)




MX-50 SR.
Our design and development team has put together the ultimate 2-stroke 50cc package which efficiently delivers sufficient power to compete with the other race ready bikes in the mini class. At the heart of the bike sits a 49 cc, 1-cylinder, 2-stroke, water-cooled engine with reed intake that produces impressive power out of the box. The centrifugal automatic clutch provides manageable acceleration and makes learning to ride a breeze.


Fastace Adjustable forks with Progressive Springs

Top of the line Fastace suspension provides a fully adjustable and responsive package which gives the rider full feel and control of the bike through ruts, over bumps, up takeoffs, and down landings.

MX50SR Forks


The Henly CNC hubs are made from 1 piece billet alloy on precision CNC machines, and are anodized to provide wear resistance and provide you with a heavy duty package which will stand against the test of time.



7075 Rims w/ Stainless Spokes

Henly designed 10/12” wheels with anodized red hubs mean that the bike is not only a killer with looks, but also provide extreme durability. The rims are made of 7075 series alloy and are used by almost all top riders. Henly rims keep on being the best, strongest and most reliable rim we can provide. Stainless steel spokes prevent stretching and snapping which is a common issue with other types of steel spokes.

MX50SR Stainless Spoke

1 1/8 Fat Bars

The design of the MX Steeze handlebar is aimed at reducing weight whilst maintaining high strength. Strength for the bar is created within the tapered wall profile allowing for a braceless design. This enables a confident level of flexibility in the handlebar. Millions of tiny steel shots are blasted at high velocity at the bar, breaking the surface tension of the material and leaving a textured surface finish which increases the fatigue life and durability of the bar.

MX50SR Fat Bars

Engine SN50 | 2 Stroke | Water Cooled
CC Rating 50cc
Gearbox Automatic
Starter Kick
Carburetion 19mm
Exhaust Pipe Bomb 388mm Exhaust System
Final Drive 420 HD Chain
Top Speed 70kph (depending on gearing)
Suspension Front VS1 Adjustable Forks | Length 640mm | 45/48
Suspension Rear VS1 Adjustable Shock | Length 295mm | 500lbs
Brakes Front 190mm Disc | HSK Dual Piston
Brakes Rear 180mm Disc | Single Piston
Wheel & Tire Front: 7075 Alloy Rim | CNC Hub
Wheel & Tire Rear: 7075 Alloy Rim | CNC Hub
Wheelbase (axle to axle) 1074mm
Seat Height: 660mm
Weight: N.W/G.W: 47/56 kg
Tank Capacity 1.3 Litres
Product Packing Size: 136 x 42 x 72CM

Additional information

Weight 124 lbs


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