Enduro Bikes
2025UM DSR 125 EX
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The 2025 UM DSR 125 EX is a learner enduro bike from UM. Its liquid-cooled 124.6cc single makes 14.8 hp at 10,750 rpm through a six-speed gearbox. A 910 mm seat, 124 kg dry weight and 6.3-litre tank suit trail riding.
- Capacity
- 124.6 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 124.0 kg
- Seat height
- 910 mm
- Power
- 14.8 HP (10.9 kW) @ 10750 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for off-road trail riding, with enough road manners to link trails where it is road-legal.
- Built for
- An enduro bike from UM with a 125cc engine; its character is easy-going and economical, with 15 hp on tap.
- Not ideal for
- Not for long road journeys, passengers or motorway riding.
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 usEngine
- Capacity
- 124.6 ccm
- Power
- 14.8 HP (10.9 kW) @ 10750 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1194 HP/kg (dry)
- Bore x stroke
- 58.0 x 47.0 mm
- Compression
- 9.2:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric & kick
- Ignition
- CDI
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
Dimensions & weight
- Wheelbase
- 1425 mm
- Overall length
- 2140 mm
- Overall width
- 825 mm
- Overall height
- 1220 mm
- Seat height
- 910 mm
- Dry weight
- 124.0 kg
- Fuel capacity
- 6.30 litres
- Ground clearance
- 190 mm
Chassis & suspension
- Front suspension
- Inverted telescopic fork
- Rear suspension
- Monoshock with gas reservoir
Brakes & wheels
- Front brakes
- Single disc. Wave disc. Hydraulic. Radially mounted two-piston fork caliper.
- Rear brakes
- Single disc. Wave disc. Hydraulic. Radially mounted two-piston fork caliper.
- Front tyre
- 90/90-21
- Rear tyre
- 120/80-18
Other
- Color options
- Yellow/black, Orange/black
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 124 kg | 124 kg | 124 kg | 124 kg |
| Seat height | 910 mm | 910 mm | 910 mm | 910 mm |
| Fuel capacity | 6.3 L | 6.3 L | 6.3 L | 6.3 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the UM DSR 125 EX?
The 2025 UM DSR 125 EX has a Capacity of 124.6 ccm (7.60 cubic inches).
What engine power does the UM DSR 125 EX have?
The 2025 UM DSR 125 EX has a Power of 14.8 HP (10.9 kW) @ 10750 RPM.
How many gears does the UM DSR 125 EX have?
The 2025 UM DSR 125 EX has a Gearbox of 6-speed.
How much does the UM DSR 125 EX weigh?
The 2025 UM DSR 125 EX has a Dry weight of 124.0 kg (273.4 pounds).
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