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2025 Yamaha TT-R50
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The 2025 Yamaha TT-R50 is a small four-stroke trail bike for children aged four to seven. Its air-cooled 49cc single makes 3.2 Nm through a three-speed gearbox with an automatic clutch. A tiny 555 mm seat, 58.1 kg wet weight and 3.1-litre tank make it a perfect first motorcycle.
Capacity
49.0 ccm
Engine
Single, four-stroke
Gearbox
3-speed
Wet weight
58.1 kg
Seat height
555 mm
Power
5.4 HP (4.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested
Speed 4 Agility 54 Comfort 30 Off-road 40 Touring 5 Road manners 10
Best for Built purely for supervised backyard and trail riding, letting kids learn throttle and balance control at very low speeds. Built for A friendly, forgiving little trail bike with a mellow 50cc engine and simple clutchless operation meant to make learning fun and low-stress. Not ideal for This is not suitable for adults, teenagers, road use, or anyone seeking real speed, distance, or off-road performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Full specifications
Metric
Imperial
Engine
Capacity
49.0 ccm
Power
5.4 HP (4.0 kW)
Torque
3.2 Nm (0.3 kgf-m) @ 5500 RPM
Engine type
Single, four-stroke
Power/weight ratio
0.0929 HP/kg (wet)
Bore x stroke
36.0 x 48.6 mm
Compression
9.5:1
Cooling system
Air
Fuel system
Carburettor
Starting
Electric
Ignition
CDI
Valves per cylinder
2
Lubrication system
Wet sump
Transmission
Gearbox
3-speed
Transmission type
Manual
Final drive
Chain
Clutch
Automatic centrifugal clutch
Dimensions & weight
Wheelbase
925 mm
Overall length
1306 mm
Overall width
594 mm
Overall height
795 mm
Seat height
555 mm
Wet weight
58.1 kg
Fuel capacity
3.10 litres
Ground clearance
135 mm
Oil capacity
1.00 litres
Chassis & suspension
Frame
Steel tube backbone
Front suspension
Telescopic fork
Rear suspension
Single shock
Front wheel travel
96 mm
Rear wheel travel
71 mm
Rake (fork angle)
25.5°
Trail
34 mm
Brakes & wheels
Front brakes
Expanding brake (drum brake)
Front brakes diameter
80 mm
Rear brakes
Expanding brake (drum brake)
Front tyre
2.50-10
Rear tyre
2.50-10
Other
Color options
Icon Blue
Comments
Intended for kids from 4 to 7 years of age.
Specs last verified against published sources: October 2026 .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us .
What changed, year to year Differences highlighted
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
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Common questions
What is the engine size of the Yamaha TT-R50? The 2025 Yamaha TT-R50 has a Capacity of 49.0 ccm (2.99 cubic inches).
What engine power does the Yamaha TT-R50 have? The 2025 Yamaha TT-R50 has a Power of 5.4 HP (4.0 kW).
How many gears does the Yamaha TT-R50 have? The 2025 Yamaha TT-R50 has a Gearbox of 3-speed.
What is the torque of the Yamaha TT-R50? The 2025 Yamaha TT-R50 has a Torque of 3.2 Nm (0.3 kgf-m or 2.4 ft.lbs) @ 5500 RPM.
How much does the Yamaha TT-R50 weigh? The 2025 Yamaha TT-R50 has a Wet weight of 58.1 kg (128.1 pounds).
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