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Naked Motorcycles

2021UM Max ZR

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The 2021 UM Max ZR is a 125cc commuter motorcycle for learner riders who want light, affordable transport. Its air-cooled single makes 10.7 hp, with a low 750 mm seat and 100 kg dry weight.

Capacity
124.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Dry weight
100.0 kg
Seat height
750 mm
Power
10.7 HP (7.8 kW) @ 8500 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 68Comfort 45Off-road 15Touring 20Road manners 50
Off-road & trail15%
Cornering40%
City riding70%
Daily riding65%
Touring20%
Two-up25%
Track10%
Best for
It's designed as a lightweight commuter for short urban trips rather than a performance or adventure machine.
Built for
The small single-cylinder engine and drum brakes give it a modest, unhurried, no-frills commuter personality.
Not ideal for
It is not suited to highway touring, two-up riding, or anyone seeking spirited performance or off-road capability.

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 750mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 UM Max ZR, with a moderate knee angle of around 105 degrees and a slightly forward 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
124.0 ccm
Power
10.7 HP (7.8 kW) @ 8500 RPM
Torque
8.6 Nm (0.9 kgf-m) @ 7000 RPM
Engine type
Single, four-stroke
Power/weight ratio
0.1070 HP/kg (dry)
Bore x stroke
56.5 x 49.5 mm
Compression
9.0:1
Cooling system
Air
Fuel system
Carburettor
Starting
Electric & kick
Ignition
CDI
Transmission
Gearbox
5-speed
Transmission type
Manual
Dimensions & weight
Wheelbase
1250 mm
Overall length
1900 mm
Overall width
735 mm
Overall height
970 mm
Seat height
750 mm
Dry weight
100.0 kg
Chassis & suspension
Front suspension
Hydraulic Telescopic Fork
Rear suspension
Hydraulic monoshock with spring
Brakes & wheels
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)
Front tyre
2.75-18
Rear tyre
3.00-18
Other
Color options
Red, Black, Blue, Orange, Green, White

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 Max ZR is a well-judged naked bike with plenty to like. The 124cc engine produces 10.7 hp and 8.6 Nm, which suits the bike's character well. With a 750 mm seat and a 100 kg weight, it is best suited to comfortable, upright everyday riding, although it is not built for long motorway trips or off-road riding. Worth a close look if it fits your needs.

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Common questions

What is the engine size of the UM Max ZR?

The 2021 UM Max ZR has a Capacity of 124.0 ccm (7.57 cubic inches).

What engine power does the UM Max ZR have?

The 2021 UM Max ZR has a Power of 10.7 HP (7.8 kW) @ 8500 RPM.

How many gears does the UM Max ZR have?

The 2021 UM Max ZR has a Gearbox of 5-speed.

What is the torque of the UM Max ZR?

The 2021 UM Max ZR has a Torque of 8.6 Nm (0.9 kgf-m or 6.3 ft.lbs) @ 7000 RPM.

How much does the UM Max ZR weigh?

The 2021 UM Max ZR has a Dry weight of 100.0 kg (220.5 pounds).

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