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2021UM Duramax 125

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The 2021 UM Duramax 125 is a 125cc commuter motorcycle for learner riders who want simple, affordable transport. Its air-cooled single makes 10.5 hp, with a low 745 mm seat.

Capacity
125.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Dry weight
112.0 kg
Seat height
745 mm
Power
10.5 HP (7.7 kW) @ 8600 RPM
⇄ Compare with another bike + Add to garage All model years

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 20Agility 65Comfort 40Off-road 15Touring 20Road manners 50
Off-road & trail15%
Cornering40%
City riding70%
Daily riding60%
Touring20%
Two-up25%
Track15%
Best for
It is best suited for short commutes and light urban riding rather than performance or long-distance use.
Built for
It has a modest, low-strung single-cylinder character that favors easy, unintimidating rideability over outright performance.
Not ideal for
It is not for riders seeking real highway speed, off-road capability, or comfortable two-up touring.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 745mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 UM Duramax 125, with a moderate knee angle of around 115 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine
Capacity
125.0 ccm
Power
10.5 HP (7.7 kW) @ 8600 RPM
Torque
8.9 Nm (0.9 kgf-m) @ 7200 RPM
Engine type
Single, four-stroke
Power/weight ratio
0.0938 HP/kg (dry)
Bore x stroke
56.5 x 49.5 mm
Compression
9.2:1
Cooling system
Air
Fuel system
Carburettor
Starting
Electric & kick
Ignition
CDI
Transmission
Gearbox
5-speed
Transmission type
Manual
Dimensions & weight
Overall length
1300 mm
Overall width
820 mm
Overall height
1050 mm
Seat height
745 mm
Dry weight
112.0 kg
Fuel capacity
10.20 litres
Ground clearance
125 mm
Chassis & suspension
Front suspension
Telescopic Fork
Rear suspension
Hydraulic With Spring
Brakes & wheels
Front brakes
Single disc
Rear brakes
Expanding brake (drum brake)
Front tyre
2.75-18
Rear tyre
110/90-16
Other
Color options
Red, Blue, Black, White, grey

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

Rider Reviews

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MotorcycleDB

The 2021 UM Duramax 125 motorcycle is a powerful and reliable option for riders looking for a versatile and efficient bike. With its durable Duramax engine, this motorcycle delivers impressive performance and fuel efficiency. The sleek design and comfortable seating make it perfect for long rides, while the advanced technology and safety features provide added peace of mind for riders.

Overall, the 2021 UM Duramax 125 motorcycle is a top choice for riders seeking a dependable and stylish bike. Its impressive engine performance, fuel efficiency, and advanced safety features make it a standout option in the market. Whether you're cruising through the city or hitting the open road, this motorcycle delivers a smooth and enjoyable riding experience.

Own one? Add it to My Garage and write an owner review with an Owner badge.

Common questions

What is the engine size of the UM Duramax 125?

The 2021 UM Duramax 125 has a Capacity of 125.0 ccm (7.63 cubic inches).

What engine power does the UM Duramax 125 have?

The 2021 UM Duramax 125 has a Power of 10.5 HP (7.7 kW) @ 8600 RPM.

How many gears does the UM Duramax 125 have?

The 2021 UM Duramax 125 has a Gearbox of 5-speed.

What is the torque of the UM Duramax 125?

The 2021 UM Duramax 125 has a Torque of 8.9 Nm (0.9 kgf-m or 6.6 ft.lbs) @ 7200 RPM.

How much does the UM Duramax 125 weigh?

The 2021 UM Duramax 125 has a Dry weight of 112.0 kg (246.9 pounds).

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