2020 Thumpstar MX 50 JR

Thumpstar MX 50 JR 2020


2020 Thumpstar MX 50 JR specifications, pictures, reviews and rating

Thumpstar's profilation of this bike
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.

General moped information
Model name Thumpstar MX 50 JR
Model year 2020
Category Minibike, cross
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Engine and transmission
Displacement 49.0 ccm (2.99 cubic inches)
Engine type Single cylinder, two-stroke
Bore x stroke 39.5 x 40.0 mm (1.6 x 1.6 inches)
Fuel system Carburettor. Mikuni 19mm
Clutch Centrifugal
Chassis, suspension, brakes and wheels
Frame type Central-Tube Frame with Double-Cradle
Front suspension Fastace Adjustable Forks
Front wheel travel 205 mm (8.1 inches)
Rear suspension Fastace Adjustable Shock
Rear wheel travel 185 mm (7.3 inches)
Front brakes Single disc. Dual piston hydraulic disc
Diameter 190 mm (7.5 inches)
Rear brakes Single disc. Single Piston
Diameter 180 mm (7.1 inches)
Wheels Steel Rim
Physical measures and capacities
Dry weight 41.5 kg (91.5 pounds)
Seat height 603 mm (23.7 inches) If adjustable, lowest setting.
Ground clearance 252 mm (9.9 inches)
Wheelbase 1032 mm (40.6 inches)
Fuel capacity 2.30 litres (0.61 US gallons)
Other specifications
Color options Green/Black
Starter Kick
Update specsReport missing specs or required updates.
Further information
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MaintenanceFind parts, fluids. filters, maintenance tools and service manuals at Amazon.com.
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